Body Systems

Question 1

What are the two systems that control all body activities ?

Answer 1

nervous system

endocrine system

Question 2

nervous system

Answer 2

enables body to gather information and respond quickly

Question 3

endocrine system

Answer 3

produces slower but longer lasting responses

Question 4

what are the two parts of the nervous system ?

Answer 4

central nervous system

peripheral nervous system

Question 5

what is the CNS made up of ?

Answer 5

brain and spinal chord

Question 6

what is the function of the CNS ?

Answer 6

process information and send instructions to the PNS

Question 7

What makes up the PNS ?

Answer 7

nerves that extend throughout the body

Question 8

what is the function of the PNS ?

Answer 8

gather and deliver information to and from the CNS

Question 9

what is the control center of the body ?

Answer 9

central nervous system

Question 10

what is a neuron ?

Answer 10

nerve cell

Question 11

why is the nerve cell important ?

Answer 11

basic functional unit of the nervous system

Question 12

what makes neurons cytoplasm different than other cells ?

Answer 12

dendrites

axon

Question 13

neurons are _______ and ________.

Answer 13

chemical

electrical

Question 14

where is the dendrite found and what does it do ?

Answer 14

attached to the cell body

receives and carries information to the cell

Question 15

where is the axon located and what does it do ?

Answer 15

extends from cell to body

carries information away

Question 16

what are nerve fibers ?

Answer 16

dendrites

Question 17

How are the nerve fibers arranged in the PNS ?

Answer 17

in bundled rope like structures called nerves

Question 18

How are the nerve fibers arranged in the CNS ?

Answer 18

bundled into structures called tracts

Question 19

what are the three types of neurons ?

Answer 19

Sensory neurons
Motor neurons
Inter neurons

Question 20

Sensory neurons function

Answer 20

send messages to CNS

from sensory receptors

Question 21

Motor neurons function

Answer 21

conduct impulses away from CNS

Question 22

Inter neurons function

Answer 22

conduct impulses within CNS process and coordinate in-going and outgoing impulses

Question 23

effectors

Answer 23

muscles or organs and glands that respond to the signal from motor nerons

Question 24

90% of cells in nervous system

Answer 24

Glial cells

Question 25

what do glial cells do ?

Answer 25

protect neurons mechanically support neurons assist neurons

Question 26

what are the two types of glial cells ?

Answer 26

schwawn cells | astrocytes

Question 27

what do schwawn cells do ?

Answer 27

insulates and holds nerve fibers together

Question 28

protective wrapping around nerve fibers in shwawn cells

Answer 28

myelin sheath

Question 29

what do astrocytes do ?

Answer 29

hold inter neurons together and connect them onto capillaries.

Question 30

what glial cells are in the PNS ?

Answer 30

Shwawn cells

Question 31

what glial cells are in the CNS ?

Answer 31

Astrocytes

Question 32

what helps supply neurons with oxygen and nutrients

Answer 32

astrocytes

Question 33

what neuron conduct impulses faster

Answer 33

neurons with the myelin sheath

Question 34

what protects the CNS

Answer 34

skull and vertebrae

Question 35

the skull and vertebrae are covered in ___ layers of connective tissue called ______.

Answer 35

3 | meninges

Question 36

CNS in made up of what 2 types of matter ?

Answer 36

grey | white

Question 37

grey matter

Answer 37

composed of densely packed nerve cell bodies

Question 38

white matter

Answer 38

composed of bundles of axons with myelin sheath.

Question 39

what controls language recognition and comprehension

Answer 39

wernicke's area

Question 40

controls motor function and speaking

Answer 40

broca's area

Question 41

what is the cerebellum called

Answer 41

little brain

Question 42

what coordinates balance and the actions of the skeletal muscles so the body moves gracefully and athletically

Answer 42

cerebellum

Question 43

controls blood pressure, heart heart, breathing, and swallowing (involuntary functions)

Answer 43

brainstem

Question 44

receives all messages from sensory receptors and then gets relayed to the right region of the brain

Answer 44

thalamus

Question 45

controls pituitary gland

Answer 45

hypothalamus

Question 46

controls hunger thirst fatigue anger body temperature

Answer 46

hypothalamus

Question 47

connects brain and spinal chord

Answer 47

brainstem