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 (B)</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 (C)</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 (A)</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 (C)</p> Signup and view all the answers

What is the linea alba an example of?

<p>Aponeurosis (C)</p> Signup and view all the answers

What is the composition of the linea alba?

<p>Thin sheaths (D)</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 (C)</p> Signup and view all the answers

What is the location of the linea alba?

<p>From the sternum to the pubic bone (B)</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 (C)</p> Signup and view all the answers

What is the linea alba composed of?

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

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

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

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

<p>4 (B)</p> Signup and view all the answers

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

<p>The linea alba (C)</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 (B)</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 (B)</p> Signup and view all the answers

What happens when the biceps muscle contracts in the forelimb?

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

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

<p>False (B)</p> Signup and view all the answers

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

<p>False (B)</p> Signup and view all the answers

Biceps and triceps are opposing muscles in the forelimb.

<p>True (A)</p> Signup and view all the answers

The deltoids assist in extension of the forelimb.

<p>False (B)</p> Signup and view all the answers

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

<p>False (B)</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 (B)</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 (B)</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 (A)</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 (C)</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 (B)</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 (B)</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 (C)</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 (B)</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 (C)</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 (A)</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 (B)</p> Signup and view all the answers

What is a characteristic of cutaneous muscles?

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

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

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

In what type of tissue are the cutaneous muscles located?

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

What is unique about the location of cutaneous muscles?

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

Cutaneous muscles are present in all people.

<p>False (B)</p> Signup and view all the answers

Cutaneous muscles are located in the skin.

<p>False (B)</p> Signup and view all the answers

Cutaneous muscles are responsible for facial expressions.

<p>False (B)</p> Signup and view all the answers

The contraction of cutaneous muscles is associated with breathing.

<p>False (B)</p> Signup and view all the answers

Cutaneous muscles are found in the thoracic limb.

<p>False (B)</p> Signup and view all the answers

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

<p>Abduction (B)</p> Signup and view all the answers

Which type of movement is the opposite of abduction?

<p>Adduction (A)</p> Signup and view all the answers

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

<p>Adduction (B)</p> Signup and view all the answers

Which of the following is an example of abduction?

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

What is the relationship between abduction and adduction?

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

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

<p>Adduction (C)</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 (C)</p> Signup and view all the answers

What is the opposite of extension?

<p>Flexion (C)</p> Signup and view all the answers

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