Anatomy and Neurovascular Quiz for PA

Which muscle originates from the spinous processes of T7-T12, thoracolumbar fascia, iliac crest, and lower 3-4 ribs, and inserts into the floor of the intertubercular sulcus of the humerus?

• Trapezius

• Latissimus dorsi

• Rhomboid major

• Levator scapulae

What is the primary action of the supraspinatus muscle at the shoulder joint?

• Adduction of the arm

• Abduction of the arm

• Medial rotation of the arm

• Extension of the arm

Which nerve innervates the deltoid muscle?

• Axillary nerve

• Radial nerve

• Musculocutaneous nerve

• Median nerve

The phrenic nerve provides motor innervation to which of the following structures?

• Intercostal muscles

• Diaphragm

• Serratus anterior

• Pectoralis major

Which artery is the second major branch if you start counting after the ascending aorta?

• Left Brachiocephalic

• Right Brachiocephalic

• Left Common Carotid

• Right Common Carotid

At what level is the sternal angle?

• T2

• T3

• T4

• T5

Postsynaptic sympathetic neurons innervating the body wall exit the sympathetic trunk and re-enter the spinal cord via this structure.

• White rami communicans

• Grey rami communicans

• Sympathetic trunk

• Splancnic Nerve

Nearly all presynaptic parasympathetic neurons originate __________ and synapse __________.

• Thoracic Spine and In target organ

• Brain stem or Lumbar Sacral region and In Target Organ

• Thoracic Spine and Preaortic ganglion

• Brain stem or Lumbar Sacral region and Preaortic ganglion

Neurons carrying sensory information synapse in this region of the spinal cord and carry what type of information.

• Dorsal and Afferent

• Dorsal and Efferent

• Ventral and Afferent

• Ventral and Efferent

Cerebrospinal fluid occupies which space in the spinal collumn.

• Extradura

• Subdura

• Subarachnoid

• Subpia