Clinical Anatomy: Nervous System

Question 1

The basic cell of the nervous system

Answer 1

Neuron

Question 2

Neuron’s consist of:

Answer 2

• Multiple Dendrites
• Cell Body
• Nucleus
• Single Axon (myelinated or unmyelinated)
• Synaptic knob and vesicles

Question 3

Connective tissue structure that surround the brain and spinal cord

Answer 3

Meninges

Question 4

The 3 Layers of Meninges

Answer 4

• Dura Mater
• Arachnoid Mater
• Pia Mater

Question 5

Layer of Meninges that directly attaches to the brain and spinal cord

Answer 5

Pia Mater

Question 6

Interconnected cavities within the cerebral hemispheres and brainstem

Answer 6

Ventricles

Question 7

Fluid within ventricles

Answer 7

Cerebral Spinal Fluid

Question 8

Intervertebral disk at which the spinal cord ends

Answer 8

Between L1 and L2

Question 9

Point at which the spinal cord ends

Answer 9

Conus Medullaris

Question 10

The core of gray matter forming the anterior and posterior horns of the spinal cord

Answer 10

• Interneurons (anterior horn)
• Cell Bodies (posterior horn)

Question 11

The simplest nerve pathway

Answer 11

Reflex Arc

Question 12

Primary Motor Area

Answer 12

Frontal Lobe

Question 13

Primary Sensory Area

Answer 13

Parietal Lobe

Question 14

Part of the brainstem that separates the midbrain from the medulla oblongata

Answer 14

Pons

Question 15

• Functions to coordinate skeletal muscle activity and maintain posture
• Has 2 hemispheres
• Consists of an outer and inner cortex connected by the vermis

Answer 15

Cerebellum

Question 16

Number of Spinal Nerves

Answer 16

31

Question 17

Rami that Form the Brachial Plexus

Answer 17

C5 to C8 and T1

Question 18

Location of the Brachial Plexus

Answer 18

• Travels with the subclavian artery and it’s continuation (the axillary artery)
• B/t the anterior and middle scalenes
• B/t pectoralis minor and the upper ribs

Question 19

Areas the Brachial Plexus Innervates

Answer 19

skin, joints, and muscles of the shoulder, chest, and upper limbs

Question 20

• Nerve that consists of 2 divisions in the posterior thigh that innervate the hamstring muscles
• It is the largest/longest nerve
• It travels down the buttocks, thigh, and feet

Answer 20

Sciatic Nerve