Chapter 10 - Nervous System - The Brain

Question 1

The brain is divided into right and left hemisphere called….

Answer 1

cerebral hemispheres

Question 2

What are the 4 lobes of the brain?

Answer 2

Frontal, Parietal, Occipital and Temporal Lobe

Question 3

Frontal lobe…

Answer 3

thought processes, behavior, personality and emotion

Question 4

Parietal lobe…

Answer 4

body sensations, visual and spatial perception

Question 5

Occipital lobe…

Answer 5

vision

Question 6

Temporal lobe…

Answer 6

hearing, understanding speech and language

Question 7

In the middle of the cerebrum are spaces, or canals, called…

Answer 7

ventricles

Question 8

This contain a watery substance/fluid that protects the brain and spinal cord from shock, like a cushion called…

Answer 8

Cerebrospinal Fluid (CSF)

Question 9

Thalamus…

Answer 9

relay station “triage center” sensory impulses

Control awareness and consciousness

Question 10

Hypothalamus…

Answer 10

• regulates body temperature, sleep appetite, emotions, sexual desires, regulates and controls hormones of the pituitary gland
• Monitors sympathetic and parasympathetic nervous systems

Question 11

Pituitary Gland

Answer 11

• “master gland” that produces growth and sexual/reproductive development and function.

Question 12

Cerebellum

Answer 12

coordination of voluntary movements and balance

Question 13

Cerebrum

Answer 13

• Largest part of the brain and has many functions

- Houses the 4 lobes

Question 14

The Brainstem contains the…

Answer 14

Pons and Midbrain

Question 15

Pons and Midbrain…

Answer 15

• Houses the nerves for the eye and facial nerves

- Bridges the Cerebrum and Cerebellum to the rest of the brain.

Question 16

Medulla Oblongata…

Answer 16

• Connects the spinal cord to the brain
• Regulates the heart, blood vessels and respiratory system
• Nerve fibers crossover right to left and left to right.
• The nerves on the left side of the body are controlled in the right half of the cerebrum.

Question 17

Nerve cells…

Answer 17

• Are stimulated by internal and external stimuli which activate the cell membranes to release stored electrical energy called the nervous impulse.

Question 18

External and internal receptors…

Answer 18

• Receive and transmit these impulses to the brain and spinal cord (central nervous system).

Question 19

Central Nervous System (CNS)

Answer 19

• Recognizes, interprets, and relays impulses to other nerve cells that extend through parts of the body, such as muscles, glands, and organs.

Question 20

Peripheral Nervous System (PNS)

Answer 20

are nerves outside the brain and the spinal cord.

Question 21

Cranial nerves…

Answer 21

carry electrical impulses between the brain and the head and neck; one exception is the tenth cranial nerve called the Vagus Nerve.

Question 22

Vagus nerve…

Answer 22

• Wanders from the brain into organs in the neck, chest, and abdomen
• Latin term for “wandering

Question 23

Spinal nerves…

Answer 23

carry impulses between the spinal cord and the chest, abdomen, and extremities

Question 24

The spinal cord…

Answer 24

• The column of nervous tissue from the medulla oblongata to the second lumbar vertebra.
• Serves as a pathway for impulses to and from the brain.

Question 25

Sympathetic…

Answer 25

nerves stimulate the body under stress

Question 26

Parasympathetic…

Answer 26

nerves balance the sympathetic system – slow the heart rate down and lower the blood pressure