Nervous System
Which subdivision of the nervous system consists of the cranial and spinal nerves?
The Peripheral Nervous System!
Name the 3 parts of the brainstem.
Midbrain, pons, and medulla
Do arteries carry deoxygenated or oxygenated blood?
Oxygenated blood
True or False. Does the spinal cord have meninges?
True
What cranial nerve senses smell?
How is the central nervous system protected?
Skull and vertebral column
Which side of the body does the right hemisphere control?
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 "tough mother"?
Dura mater
What cranial nerve controls the muscles of the tongue?
CN XII, Hypoglossal
How many neurons are involved in the motor pathway from the brain to spinal nerves?
2, upper and lower motor neurons
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.
The posterior circulation to the brain arises from which artery?
Where is the subdural space located?
Between the dura and arachnoid mater.
What cranial nerve is responsible for balance?
CN VIII, Vestiibulocochlear
False. The spinal cord is divided into 4 levels.
- Cervical level
- Thoracic level
- Lumbar level
- Sacral level
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