Nervous System Brain

Question 1

what is the brain?

Answer 1

controls body activities

Question 2

what is the largest part of the brain?

Answer 2

cerebrum

Question 3

cerebral cortex

Answer 3

outer region of the cerebrum

Question 4

gyri (gyrus)

Answer 4

sheet of nerve cells that produces a rounded ridge on the surface of the cerebral cortex

Question 5

sulci (sulcus)

Answer 5

depression or groove in the surface of the cerebral cortex

Question 6

brain is divided in half, a right and left side? What is this called?

Answer 6

cerebral hemisphere

Question 7

4 lobes of the brain

Answer 7

frontal, parietal, temporal, and occipital

Question 8

Frontal lobe is responsible for?

Answer 8

thought processes, behavior, personality, emotion

Question 9

Parietal lobe is responsible for?

Answer 9

body, sensations, visual and spatial perception

Question 10

Temporal lobe is responsible for?

Answer 10

hearing, understanding speech, language

Question 11

Occipital lobe is responsible for?

Answer 11

vision

Question 12

What is the cerebrum responsible for?

Answer 12

thinking, personality, sensations, movements, memory, judgment, association and discrimination

Question 13

what are ventricles?

Answer 13

spaces or canals in the middle of the cerebrum

Question 14

what do ventricles contain?

Answer 14

watery fluid that flows throughout the brain and spinal cord. Called cerebrospinal fluid (CSF)

Question 15

what does cerebrospinal fluid do?

Answer 15

protects the brain and spinal cord from shock by acting like a cushion

Question 16

what is the thalamus?

Answer 16

relay station (triage center) selectively processing and relaying only important information to the cerebral cortex, plays an important role in maintaining levels of awareness and consciousness

Question 17

What is the function of the hypothalamus?

Answer 17

control body temperature, sleep, appetite, sexual desire, and emotions. Also regulates the release of hormones from the pituitary gland and integrates the activities of the sympathetic and parasympathetic nervous system

Question 18

what 4 structures within the brain lie in the back and below the cerebrum and connect the cerebrum with the spinal cord?

Answer 18

cerebellum, midbrain, pons, and medulla oblongata

Question 19

what is the function of the cerebellum?

Answer 19

coordinates voluntary movements and maintains balance and posture

Question 20

what is the function of the midbrain?

Answer 20

the uppermost portion of the brainstem containing pathways connecting the cerebrum with lower portions of the brain and structures involved with seeing and hearing

Question 21

what is the function of the pons?

Answer 21

part of the brainstem that literally means bridge. Contains nerve fiber tracts that connect the cerebellum and cerebrum with the rest of the brain. Nerves affecting the face and eye movement located here

Question 22

what is the function of the medulla oblongata?

Answer 22

connects the spinal cord to the rest of the brain. Nerve tracts cross from the right to left and left to right. Cells send out axons that cross over (decussate) to the opposite side of the brain in the medulla oblongata and then travel down the spinal cord

Question 23

What are the 3 important vital centers regulated by the medulla oblongata?

Answer 23

Respiratory center (controls muscles of respiratory center), cardiac center (controls heart rate), and vasomotor center (constricts or dilates) muscles in the walls of blood vessels, influencing blood pressure)