Nervous System | HAP | MIDTERM

Which of the following is NOT a function of the nervous system?

What are the two divisions of the nervous system?

This includes the brain and spinal cord

Includes cranial and spinal nerves, and sensory receptors

Recieves action potentials from receptors

Send action potentials from CNS to organs and glands

The following are true about neurons EXCEPT?

These are supporting cells for nourishment and protection, also undergoes through cell division which may cause brain tumor

Immune cells of the CNS

Star-shaped; contribute with the blood brain barrier.

cell processes FORM myelin sheaths around the axons or enclosed unmyelinated axons in the CNS

FORM the myelin sheath around axons or enclose unmyelinated axons in the PNS

Consists of bundles of parallel axons and their myelin sheaths

consists of groups of neuron cell bodies and their dendrites

There are a total of 31 pair of spinal nerves consisting of 15 sensory neurons, 9 motor neurons, and 7 mixed neurons

There are three plexuses that categorize them where nerves come together and seperate namely cervical, brachial, and lumbosacral plexus. Which of these spinal nerves do not belong to any plexuses

Connects the spinal cord to the remainder of the brain

Critical damage in this part of the brain could cause death more than the other areas

Functional bridge between cerebrum and cerebellum

The most inferior portion of the brainstem and is continuous with the spinal cord

The smallest region of the brainstem

Regulates the ff.

¤ heart rate and blood vessel diameter
¤ breathing
¤ swallowing
¤ vomiting
¤ coughing
¤ sneezing
¤ balance
¤ coordination

The dorsal part consists of four mounds, called colliculi

Regulates the ff.

¤ breathing
¤ swallowing
¤ balance
¤ chewing
¤ salivation

Called the "little brain"

Internally, consists of gray matter and white nerve tracts

Thalamus and Hypothalamus are its main components

Largest part of the brain

Influences mood and registers uncomfortable perception of pain

Sensations such as sexual pleasure, rage, fear, and relaxation after a meal

Plays a major role in controlling the secretion of hormones from the pituitary gland

Functions in receiving and perceiving VISUAL input

In the control of:
¤ voluntary motor functions
¤ motivation
¤ mood

Involved in olfactory, auditory sensations, memory, and abstract thought/judgement

Choose the correct labelling

principal center for receiving and consciously perceiving most sensory information , such as touch, pain, temperature