A. rectus abdominis C acetylcholine to transmit the impulse to the muscle fiber D. deltoid. (d) Segmental branches. b) lateral rectus. i think it's the rectus capi lateralus. __________ muscles have their fibers arranged obliquely to their tendons In a manner similar to a feather, such as unipennate, bipennate, and multipennate muscles. D sarcolemma, At the neuromuscular junction, the sacrolemma contains: In the following exercise, the first sentence describes someone or something. A. trapezius D creatine phosphate/creatine, In cell respiration in muscles, the product that is a waste product is: To explain skeletal muscle movements as activities of agonists (prime movers), antagonists, and synergists. - The number of muscle fibers best determines how powerful a muscle will be. Which of the following are correctly matched? At the same time, itflexes the lower cervical column causing an overall bending of the neck towards the chest. B. subscapularis A muscle that stabilizes the origin of the prime mover (i.e. A. scalenes. B. semispinalis capitis The major movement produced during quiet breathing is accomplished by the The last feature by which to name a muscle is its action. a group of muscles that work together to cause movement. E. coracobrachialis, The teres major and teres minor are not involved in E. biceps brachii and triceps brachii. A. trapezius Write down equations to describe the alpha decay of the following atoms: What is the antagonist of the Internal Oblique (Trunk flexion)? D. Pectoralis minor. . An equilibrium mixture of CO2,CO\mathrm{CO}_2, \mathrm{CO}CO2,CO, and O2\mathrm{O}_2O2 exits at 3000K,1.5bar3000 \mathrm{~K}, 1.5\ \text{bar}3000K,1.5bar. D. masseter and medial pterygoid. Identify the muscle that performs the following function: Two muscle pairs that flex the vertebral column; compress the abdomen, and laterally flex the vertebral column. The biceps brachii functions to pull the radius of the lower arm toward the body. b. The muscle that is used to cross the legs is the Sobre Kol ; Saiba mais sobre nossa tecnologia e como mais e mais universidades, organizaes de pesquisa e empresas de todos os setores esto usando nossos dados para reduzir seus custos. What is the antagonist of the Extensor Carpi Radialis Brevis (wrist extension)? E. palm. The sternocleidomastoid muscle (SCM for short and also know as the musculus sternocleidomastoideus) is a paired superficial muscle in the anterior portion of the neck responsible for flexing. 3 synonyms for musculus sternocleidomastoideus: sternocleido mastoideus, sternocleidomastoid, sternocleidomastoid muscle. E. rhomboideus major, Which muscle will depress the scapula or elevate the ribs? A. nasalis A. sartorius. D. zygomaticus major A acetylcholine to be stored when an impulse arrives Match the following fascicle arrangement with the appropriate power generation or description: Parallel, Straplike with an expanded belly; great ability to shorten but not usually very powerful. The biceps femoris is part of the You need our head and neck muscle anatomy chart! Synergists help agonists. C. external abdominal oblique. Which muscle pulls the skin of the chin upward? A gaseous mixture with a molar analysis of 20%CO220\ \% \mathrm{CO}_220%CO2, 40%CO40\ \% \mathrm{CO}40%CO, and 40%O240\ \% \mathrm{O}_240%O2 enters a heat exchanger and is heated at constant pressure. D. subclavius Which of the following is not a muscle primarily involved in the breathing process? C. internal abdominal oblique Which of the following is not an intrinsic muscle of the head? E. extensor digiti minimi. (a) greater for well 1, B. movement of semimembranosus and semitendinosus. E. vastus intermedius, Of the following muscles of the leg, which one is on the anterior side of the leg? hope you all enjoy the vid!enjoy the video and reflect on the mod. C. supraspinatus D. coracobrachialis D muscle fibers must have oxygen to complete cell respiration, The term "oxygen debt" means - biceps brachii at the elbow; third-class lever D orbicularis oculi- closes eye, Which muscle is NOT paired with its correct function? What is the antagonist of the Biceps Femoris (knee flexion)? Which of the following muscles is unique, in that it acts as its own antagonist? D. insertion. serratus anterior A flex the leg The prime mover for flexion of the thigh is the __________ muscle. Antagonists counter the action of a prime mover. From what height did the student fall? E. masseter. D. tensor fasciae latae List the muscles of the Thenar eminence and their function. C. tibialis anterior B. contributes to pouting. What is the antagonist of the Extensor Hallucis Longus (Toe 1 extension)? A. pennate. A biceps brachii- flexes forearm B. adduction of the arm. What is the antagonist of the Spinalis (Spine extension)? bipennate Which muscle dorsiflexes and inverts the foot? A raise the shoulder C. the muscle that does most of the movement. D center lines of a sarcomere, and myosin filaments are attached, During a state of polarization, the sacrolemma has a ______ charge outside and a ______ charge inside. the end of the muscle where the action occurs. When both sternocleidomastoid muscles contract, the head is flexed. D adductor group, The muscle on the anterior side of the thigh that flexes the lower leg is the: C. occipitofrontalis When you say "ah" and stick out your tongue, which muscle do you use? C. 2 and 3 B tetanus/coordination C. serratus anterior A. extension of the arm. D. defecation. What is the antagonist of the Corabobrachialis (Adduction)? B less permeable to potassium ions Name the following: A contraction in which muscles produce tension but do not shorten. A. hamstrings. C. flexor pollicis brevis Which of the following muscles helps to open the mouth (depress the mandible)? B. extensors. D. are not involved in movement. A. sternocleidomastoid Match the word to its correct meaning: Rectus. What is the antagonist of the Supraspinatus (Abducts humerus)? Their antagonists are the _____ muscles. Match the following fascicle arrangement with its appropriate power generation or description: circular. A. index finger; little finger . A. pectineus insert and sometimes originate on skin and connective tissue. When an intramuscular injection is given in the anterior aspect of the thigh, the injection is in the The abdominal muscle that has its origin at the pubic crest and symphysis pubis is the C impulses from the brain are needed for voluntary movement B. flexor carpi ulnaris The orbicularis oris muscle B flex the vertebral column E. iliotibial tract, . B. coracobrachialis The two heads join into one muscle belly that goes on to insert on the lateral surface of themastoid process of the temporal bone and the lateral half of thesuperior nuchal line of the occipital bone. An antagonist muscle is in opposition to a prime mover in that it provides some resistance and/or reverses a given movement. D water, During muscle contraction, oxygen is stored in muscles by: The pelvic diaphragm is formed by the The muscles of the body are classified into regions known as axial and appendicular. A the cerebellum promotes coordination C oxygen Which of the following muscles is a flexor of the thigh? A unilateral contraction of the sternocleidomastoid muscle flexes the cervical vertebral column to the same side (lateral flexion) and rotates the head to the opposite side. a. Antagonist b. Fixator c. Prime mover (agonist) d. Synergist. convergent arrangement of fascicles; fan-shaped muscle 2012-03-06 . (c) equal for both wells? A. levator scapulae E. unipennate. E. attach at the distal end of the humerus, A tennis player complains of severe pain in the shoulder when serving or returning an overhead volley. c) Orbicularis oculi. A. function and orientation. E. deltoid, . . The carotid pulse may be felt in the middle third of the front edge. Which of the following best describes the orbicularis oris? E. raises the eyelid. The main muscle that resists a movement is called the antagonist. Teres Major, Latissimus Dorsi, Pectoralis Major, Coracobrachialis. E. zygomaticus. Which of the following groups of muscles does not move the vertebral column? a. Identify the muscle that performs the following function: Paired muscle that extends vertebral column, maintains erect posture, and laterally flexes the vertebral column. Synonyms for sternocleidomastoid (muscle) in Free Thesaurus. E. internal intercostals. C. orbicularis oculi Reading time: 5 minutes. The name has the origin of the Latin words: sternon = chest; cleido = clavicle and the Greek words: mastos = breast and eidos = shape, form. When viewed together, this pair forms a diamond or trapezoid shape, hence its name. a) Clavicle b) Cervical vertebrae c) Scapula d) Sacrum. The zygomaticus major muscle D blood flow within muscles is increased by vasodilation, During exercise, the purpose of vasodilation in muscles is to: C gluteus maximus flexes thigh E. extensor carpi radialis longus, Flexion of the hip is a movement produced by the A. class I lever system. A. D flex the arm, The muscle on the posterior side of the shoulder that raises the shoulder is the: D. adductors. B. The sternocleidomastoid muscles help to flex the neck. Two positive point charges qqq and 4q4 q4q are at x=0x=0x=0 and x=Lx=Lx=L, respectively, and free to move. LAB 5 Muscle I Axial Muscular System Objectives: To know the primary functions of the muscular system. B. Abdominal. a) biceps brachii. C. ring finger; thumb B. gluteus maximus and vastus lateralis. D iliopsoas, The muscle on the anterior thigh that flexes the thigh is the: A cerebrum: frontal lobes Damage to which of the following muscles would hinder inspiration? Last reviewed: February 21, 2023 D cerebrum: occipital bones, Which statement is NOT true of the muscles and the brain? Which of the following are correctly matched? D. flex the forearm. it closes, purses, and protrudes the lips. Agonists are the prime movers for an action. E. triceps brachii. An agonist muscle is a muscle that is primarily responsible for the action being demonstrated. D. multifidus C. a wonderful smile. D. vastus medialis Prime movers and antagonists are often paired up on opposite sides of a joint, with their prime mover/antagonist roles reversing as the movement changes direction. Match the word to its correct meaning: Deltoid. e) Trapezius. A hemoglobin in blood plasma Sternocleidomastoid muscle, along with the trapezius muscle , is invested by the superficial layer of the deep cervical fascia, which splits around it. a. platysma b. occipitalis c. sternohyoid d. mylohyoid. C. B. stress fractures of the fibula 2 to 5 cm distal to the knee. Muscles Muscles. The muscles of the anterior group of forearm muscles are primarily The, Which muscle acts as an antagonist to trapezius? Learning anatomy is a massive undertaking, and we're here to help you pass with flying colours. If the sentence is correctly written, write C after it. The sternocleidomastoid muscle (SCM) divides the neck area into anterior and posterior triangles. It has no effect. A. puckers the mouth for kissing. B pectoralis major What are the three muscles in the group of arm flexors, innervated by the musculocutaneous nerve? D. biceps femoris A flex the neck D. causes crow's feet wrinkles. Approximately 0.5% of all newborns suffer from muscular torticollis, however, the etiology remains unclear. C both A and B It pulls the charge forward. pennate arrangement of fascicles; spindle-shaped muscle D. tensor fasciae latae B circulate more blood to muscles D. medial thigh compartment. The end of the muscle that connects to the sternum is the A. origin. Muscles that change the shape of the tongue are called Toll-like receptor 9 is a protein that in humans is encoded by the TLR9 gene. insertion E. biceps femoris. lateral flexion The sternocleidomastoid (SCM) is a muscle of the neck so-named because it originates on the sternum (sterno) and the clavicle (cleido) and inserts on the mastoid process (mastoid) which is an easily located bony prominence behind the ear (The mastoid process also serves as an attachment for the posterior belly of the digastric, splenius capitis, The sternocleidomastoid muscle extends from the mastoid process of the temporal bone to the sternum and medial clavicle. In humans A they have opposite functions B they push bones in opposite directions a) Orbicularis oris. . B. latissimus dorsi D trapezius, The muscle on the anterior side of the trunk that flexes and adducts the arm is the: Once identified, the needle is slowly advanced following the posterior border of the sternocleidomastoid . Antagonist - drug that inhibits or slows activity to receptor -1 - increases mean blood pressure by vaso constriction. (2) right medial rectus C. peroneus longus; plantaris B. D. sartorius and rectus femoris. Rectus Femoris, Vastus Lateralis, Vastus Medialis, Vastus Intermedius. E. gastrocnemius, Which of the following is a posterior thigh muscle? E. index finger; thumb. Also, the muscle works with the scalene muscles in the neck during forced inspiration while breathing. Which of the following muscles is named for its location? What is the antagonist of the Pectoralis Major (Flexion of humerus)? What is the antagonist muscle to the sternocleidomastoid? B extend the leg In the following sentence, strike through each error in capitalization and write the correct form above it. What are the muscles in the neck and the chest area? However, the second heart field has recently been identified as an additional source of myocardial progenitor cells. E. external intercostals. D. lateral rotation of the arm. C. pectoralis minor and pectoralis major. C. Find the center of mass of the uniform, solid cone of height h, base radius R, and constant density \rho shown in the given figure. D. hold the head of the humerus in the glenoid fossa of the scapula. Of the following muscles of the thigh, which one is on the posterior side? Damage to the muscle called the levator ani would result in deltoid Select all that apply. B. serratus anterior C. sternothyroid and buccinator. What is the antagonist of the Peroneus Longus (eversion)? What muscles are postural antagonists to the sternocleidomastoid? What are synonyms for sternocleidomastoid (muscle)? . B. soleus B. difficult defecation. A. biceps femoris A. does most of the work in "sit-ups." 5. B. crow's feet wrinkles. When both muscles of this pair are contracted simultaneously, they flex the neck forward. D myoglobin in muscles, Which statement is NOT true of oxygen and muscles? - the location of the muscle D. is used in the knee-jerk reflex. (a) diaphragm (b) external intercostals (c) sternocleidomastoid (d) scalenes (e) abdominal muscles. A. masseter [1] In the anterior triangle, we find the suprahyoid and infrahyoid muscles. C. trapezius Explain how the sternocleidomastoid and splenius muscles can act as either synergists or antagonists for the actions of the neck flexion, extension, and lateral rotation. B creatine phosphate B. triceps brachii B. accounts for a sprinter's stance. D. subclavius b) masseter. B. flexor carpi radialis. C. opponens pollicis. coccygeus B. the end of the muscle where the action occurs. What is a muscle that provides the major force for producing a specific movement called? C gluteus maximus D. tibialis posterior E. lever is a pivot point. What are the magnitude, sign, and xxx-coordinate of the third charge? Lateral flexion of the head and cervical spine when acting unilaterally Agonists: Splenius Capitis Antagonists: Splenius Capitis - contralateral side 4. A muscle that assists the muscle primarily responsible for a given action is a(n) __________. Match the following muscle action with its appropriate term: A breathing has stopped and there is no oxygen in the blood A muscle in opposition to the action of a prime mover muscle. Powerful flexor and adductor of hand. C orbicularis oculi b) gastrocnemius. C. peroneus tertius Choose the letter that best answers the question or completes the statement. Most flexor muscles are located on the ___ aspect of the body, most extensions are located ___. B. rectus femoris rotation, Choosing from the lateral neck muscles, which muscle is the prime mover for flexion of the head at the neck? - trapezius action on the atlanto-occipital joint; second-class lever D. palatoglossus D. tensor fasciae latae . E. pectoralis minor, . The primary actions of the muscle are rotation of the head to the opposite side and flexion of the neck. a. E. lifting weight with your arm. A. tibialis anterior A simple example of an antagonist is the Queen in Snow White and the Seven Dwarfs, who opposes and wants to destroy Snow White. articular muscle one that has one end attached to the capsule of a joint. All rights reserved. A. infraspinatus A. rhomboideus major C. allows one to sit cross-legged. Which of the following muscles has superior, middle and inferior sections? D. extensor carpi radialis longus. Learn everything about those triangles with the following study unit. [2] It protects the vertical neurovascular bundle of neck, branches of cervical plexus, deep cervical lymph nodes and soft tissues of neck from damage [2 . The pair consists of muscles wherein one contracts while the other relaxes. . A. Sternocleidomastoid. A quadriceps femoris c) sternocleidomastoid. Match the action with its appropriate arm muscle name: Flexes forearm at elbow joint and supinates forearm. See appendix 3-4. Antagonistic pairs or pairs of muscles that work opposite one another can also contract at the same time and potentially cause injuries. parallel, List the arrangement of components found in a third-class lever. The anterior triangle is delimited by the posterior border of the SCM, the inferior border of the mandible inferiorly, and the medial line of the neck medially. B muscles lack the oxygen needed to complete cell respiration a. splenius cervicis b. latissimus dorsi c. trapezius (upper fibers) d. serratus anterior e. teres major. E. gracilis, Which thigh muscle adducts the thigh and flexes the knee? Register now 1 and 3 D. anconeus and supinator. A sartorius E. vastus intermedius, . C. pectoralis minor B. longissimus capitis They both work together to help you walk, sit, stand up, and do many other actions. The sternocleidomastoids (SCMs) are superficially located neck muscles that play an important role in tilting your head and turning your neck, as well as other movements. B. quadriceps femoris A. interossei palmaris Previously, a single source of progenitor cells was thought to be responsible for the formation of the cardiac muscle. A. extensor indicis. Which muscle lies directly posterior to the musculus serratus posterior inferior right and left muscle groups? Which of the following muscles contracts during forced expiration? B. fingers. Draw two lines under the verb in parentheses that agrees with the subject. B muscle tone E. quadratus lumborum, difficult defecation and decreased support for the pelvic viscera. E. gracilis, Which of the following is the longest muscle in the body? transverse; parallel to the long axis. A. Sternocleidomastoid. D. the stationary end of the muscle. The brachial plexus should lie between these two muscles. A. quadriceps femoris A. levator scapulae A more permeable to potassium ions levator ani, choose all that apply: In the body's lever systems, the That is, how are did_{\mathrm{i}}di and dod_{\mathrm{o}}do related? What is the function of Sternocleidomastoid? b) masseter. B sacrospinalis group B. external abdominal oblique C less permeable to sodium ions The depressor anguli oris muscle Muscle antagonists In order to maintain a balance of tension at a joint we also have a muscle or muscles that resist a movement.