PNS Anatomy
What nerve innervates the anterior compartment of the thigh?
Femoral nerve
Name the 3 parts of the brainstem.
Midbrain, pons, and medulla
The posterior circulation to the brain arises from which artery?
Vertebral artery
True or False. Does the spinal cord have meninges?
True
What cranial nerve senses smell?
How many cervical spinal nerves are there?
8 cervical spinal nerves, 7 cervical vertebrae
Injury to the right post-central gyrus would cause what type of deficit and what side of the body?
sensory loss on the left side of the body
Name the artery that arises from the carotid bifurcation and provides blood supply to the brain.
Internal carotid artery
Which meningeal layer means "delicate mother"?
Pia mater
What cranial nerve controls the muscles of the tongue?
CN XII, Hypoglossal
Name a muscular compartment innervated by the radial nerve.
Posterior arm, posterior forearm
Which cerebral lobe is responsible for visual perception?
Occipital lobe
Name a cerebral artery that supplies blood to the temporal lobe?
Middle or posterior cerebral artery
Name a function of the CSF.
1. Protects the CNS
2. Help with the removal of toxins
3. Allows the brain to float (gives buoyancy)
What cranial nerve causes the pupil to constrict (get smaller)?
CN III, Oculomotor
Are afferent or efferent nerve fibers in the dorsal root?
Afferent
Which cerebral lobe is responsible for initiating motor movements?
The frontal lobe, more specifically the primary motor cortex.
What venous sinus drains the superior aspect of the falx cerebri?
Superior sagittal sinus
The sudural space is located between what two structures?
Between the dura and arachnoid mater.
What cranial nerve is responsible for balance?
CN VIII, Vestiibulocochlear
Name type of the nerve fibers (motor, sensory, etc.) present in a ventral ramus.
motor and sensory
What is the name of the space between the left and right cerebral hemispheres?
Longitudinal fissure
An obstructive stroke (blockage of an artery) is observed in the anterior cerebral artery. Which cerebral lobe(s) is/are affected?
Frontal lobe
List the flow of CSF in the ventricular system
1. Lateral ventricles
2. Third ventricle
3. Cerebral aqueduct
4. Fourth ventricle
What cranial nerve senses taste on the anterior 2/3 of the tongue?
CN VII, Facial