Anatomy of the Central and Peripheral Nervous System
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Questions and Answers

How many pairs of spinal nerves are there in the human body?

  • 40
  • 30
  • 31 (correct)
  • 20

The spinal cord in the cervical region undergoes which type of change?

  • Reduction
  • Lengthening
  • Enlargement (correct)
  • Shortening

What is the main function of the Brachial Plexus?

  • Supplying the abdominal organs
  • Supplying the upper limb (correct)
  • Supplying the thoracic region
  • Supplying the lower limb

The Brachial Plexus is formed by the union of the ventral rami of which spinal nerves?

<p>C5, C6, C7, C8, T1 (D)</p> Signup and view all the answers

The Brachial Plexus can be divided into how many parts?

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

Which of the following is a part of the Brachial Plexus?

<p>Roots of brachial plexus (C)</p> Signup and view all the answers

Which muscle is supplied by the dorsal scapular nerve?

<p>Levator scapulae (D)</p> Signup and view all the answers

Which of the following nerves arises from the roots of the brachial plexus in the neck?

<p>Long thoracic nerve (C)</p> Signup and view all the answers

Which part of the brachial plexus is formed by the union of C5 and C6?

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

Which cord is lateral to the 2nd part of the axillary artery?

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

Which nerve supplies the pectoralis major muscle?

<p>Lateral pectoral nerve (B)</p> Signup and view all the answers

Which branch of the brachial plexus is responsible for the winged scapula?

<p>Long thoracic nerve (B)</p> Signup and view all the answers

What is the function of the serratus anterior muscle?

<p>It holds the scapula against the ribcage (C)</p> Signup and view all the answers

Which part of the brachial plexus is bounded by the sternocleidomastoid muscle, trapezius, and the clavicle?

<p>Posterior triangle (D)</p> Signup and view all the answers

Which nerve is formed by the union of the medial and lateral roots?

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

Which branch of the brachial plexus passes through the quadrangular space?

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

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