Muscular System 2
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Questions and Answers

3 main sites that are commonly used in veterinary medicine

  • Cranial thigh (quadriceps) B, Anterior neck, Spinal (epaxial) C (correct)
  • Cranial scapula (quadriceps) B, Anterior chest, Spinal (epaxial) C
  • Cranial thigh (quadriceps) B, Posterior neck, Spinal (epaxial) C
  • Cranial muscle (quadriceps) B, Anterior neck, Spinal (epaxial) C

    • What is the primary function of the intercostal muscles during breathing?

  • To separate the thoracic cavity from the abdominal cavity
  • To assist with expansion and contraction of the thorax (correct)
  • To push abdominal contents cranially
  • To compress the thoracic cavity

    • What happens to the diaphragm when an animal breathes?

  • It flattens out, pushing abdominal contents caudally (correct)
  • It remains unchanged
  • It flattens out, pushing abdominal contents cranially
  • It becomes thicker and more dome-shaped

    • What is the result of the diaphragm's contraction on the thoracic cavity?

    <p>It increases the size of the thoracic cavity</p> Signup and view all the answers

    What is the relationship between the thoracic cavity and the abdominal cavity?

    <p>They are connected by the diaphragm</p> Signup and view all the answers

    What is the primary function of the diaphragm in breathing?

    <p>To regulate the size of the thoracic cavity</p> Signup and view all the answers

    The ______ muscles run between the ribs and help with expansion and contraction of the thorax.

    <p>intercostal</p> Signup and view all the answers

    The diaphragm is a thin, dome-shaped ______ separating the thoracic cavity from the abdominal cavity.

    <p>sheet</p> Signup and view all the answers

    When an animal breathes, the diaphragm flattens out, pushing abdominal contents ______.

    <p>caudally</p> Signup and view all the answers

    The diaphragm's contraction increases the size of the ______ cavity.

    <p>thoracic</p> Signup and view all the answers

    Intercostal muscles help with breathing especially when an animal is ______.

    <p>panting</p> Signup and view all the answers

    What is the primary function of the linea alba?

    <p>To connect the sternum to the pubic bone</p> Signup and view all the answers

    What is the linea alba an example of?

    <p>Aponeurosis</p> Signup and view all the answers

    What is the composition of the linea alba?

    <p>Thin sheaths</p> Signup and view all the answers

    What is the linea alba commonly used for in surgical procedures?

    <p>Surgical entry to the abdominal cavity</p> Signup and view all the answers

    What is the location of the linea alba?

    <p>From the sternum to the pubic bone</p> Signup and view all the answers

    What is the primary function of the linea alba in relation to abdominal organs?

    <p>To protect and contain them</p> Signup and view all the answers

    What is the linea alba composed of?

    <p>Thin, sheath-like aponeurosis</p> Signup and view all the answers

    What is the linea alba's role in expulsion functions?

    <p>Expulsion of faeces, urine, and foetus</p> Signup and view all the answers

    How many abdominal muscles are arranged in layers, from superficial to deep?

    <p>4</p> Signup and view all the answers

    What is a common site for surgical entry to the abdomen?

    <p>The linea alba</p> Signup and view all the answers

    What is the primary function of the pectoral muscles in relation to the forelimb?

    <p>To stop the forelimbs from abducing away</p> Signup and view all the answers

    What is the opposing action of the deltoid muscles in relation to the pectoral muscles?

    <p>Flexion and abduction of the shoulder joint</p> Signup and view all the answers

    What happens when the biceps muscle contracts in the forelimb?

    <p>The elbow flexes</p> Signup and view all the answers

    What is the relation between the triceps and biceps muscles in the forelimb?

    <p>One muscle flexes the elbow, while the other extends it</p> Signup and view all the answers

    What is the role of the muscles of the thoracic limb in relation to birds?

    <p>They assist in flight</p> Signup and view all the answers

    The deltoids do not assist in flexion of the shoulder joint.

    <p>False</p> Signup and view all the answers

    The pectoral muscles only abduct the forelimb away from the body.

    <p>False</p> Signup and view all the answers

    Biceps and triceps are opposing muscles in the forelimb.

    <p>True</p> Signup and view all the answers

    The deltoids assist in extension of the forelimb.

    <p>False</p> Signup and view all the answers

    The primary function of the muscles of the thoracic limb is respiration.

    <p>False</p> Signup and view all the answers

    What is the primary function of the muscles of the head and neck?

    <p>To enable eating, chewing, and movement of the head</p> Signup and view all the answers

    Which of the following is NOT a function of the muscles of the head and neck?

    <p>Assist in breathing</p> Signup and view all the answers

    What is the main role of the muscles of the head and neck in relation to eating?

    <p>To enable chewing and eating</p> Signup and view all the answers

    Which of the following movements is facilitated by the muscles of the head and neck?

    <p>Lateral and dorsal movement of the head</p> Signup and view all the answers

    What is the primary function of the muscles of the head and neck in relation to sensory structures?

    <p>To move sensory structures such as eyes, ears, and tongue</p> Signup and view all the answers

    What is the primary function of the muscles of the head and neck in relation to movement?

    <p>Enabling movement of the head laterally, ventrally, and dorsally</p> Signup and view all the answers

    What is the role of the muscles of the head and neck in relation to facial expressions?

    <p>Controlling facial expressions</p> Signup and view all the answers

    What is the primary function of the muscles of the head and neck in relation to eating?

    <p>Enabling chewing</p> Signup and view all the answers

    What is the role of the muscles of the head and neck in relation to sensory structures?

    <p>Moving sensory structures such as eyes, ears, and tongue</p> Signup and view all the answers

    What is the primary function of the muscles of the head and neck in relation to the head?

    <p>Enabling movement of the head laterally, ventrally, and dorsally</p> Signup and view all the answers

    Muscles of the head and neck control ______ expressions

    <p>facial</p> Signup and view all the answers

    The main roles of the muscles of the head and neck include ______ and movement

    <p>eating/chewing</p> Signup and view all the answers

    The muscles of the head and neck move ______ structures

    <p>sensory</p> Signup and view all the answers

    The muscles of the head and neck support the ______ and allow it to move

    <p>head</p> Signup and view all the answers

    The muscles of the head and neck enable ______ and vocalizing

    <p>chewing</p> Signup and view all the answers

    Where are the cutaneous muscles typically located?

    <p>In the connective tissue beneath the skin</p> Signup and view all the answers

    What is a characteristic of cutaneous muscles?

    <p>They are not present in people</p> Signup and view all the answers

    What is the phenomenon associated with the contraction of cutaneous muscles?

    <p>The skin 'flinches'</p> Signup and view all the answers

    In what type of tissue are the cutaneous muscles located?

    <p>Connective tissue</p> Signup and view all the answers

    What is unique about the location of cutaneous muscles?

    <p>They are located beneath the skin</p> Signup and view all the answers

    Cutaneous muscles are present in all people.

    <p>False</p> Signup and view all the answers

    Cutaneous muscles are located in the skin.

    <p>False</p> Signup and view all the answers

    Cutaneous muscles are responsible for facial expressions.

    <p>False</p> Signup and view all the answers

    The contraction of cutaneous muscles is associated with breathing.

    <p>False</p> Signup and view all the answers

    Cutaneous muscles are found in the thoracic limb.

    <p>False</p> Signup and view all the answers

    What is the movement of a body part away from the midline called?

    <p>Abduction</p> Signup and view all the answers

    Which type of movement is the opposite of abduction?

    <p>Adduction</p> Signup and view all the answers

    What is the term for the movement of a body part towards the midline?

    <p>Adduction</p> Signup and view all the answers

    Which of the following is an example of abduction?

    <p>Moving the arm away from the body</p> Signup and view all the answers

    What is the relationship between abduction and adduction?

    <p>They are opposite movements</p> Signup and view all the answers

    What is the definition of flexion in terms of body parts?

    <p>Bending of a limb to decrease the angle between two body parts</p> Signup and view all the answers

    What is the point of origin of a muscle?

    <p>The site of least movement when the muscle contracts</p> Signup and view all the answers

    What is the movement of a body part towards the midline called?

    <p>Adduction</p> Signup and view all the answers

    What is the point of insertion of a muscle?

    <p>The site of most movement when the muscle contracts</p> Signup and view all the answers

    What is the opposite of extension?

    <p>Flexion</p> Signup and view all the answers

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