Muscles and Nervous

Question 1

Fascicle

Answer 1

bundle of muscle fiber

Question 2

Epimysium

Answer 2

irregular connective tissue that surrounds the whole muscle

Question 3

Actin

Answer 3

thin filaments of protein in a muscle

Question 4

Lactic Acid

Answer 4

It forms when the body breaks down carbohydrates to use for energy when oxygen levels are low

Ex: sore muscles

Question 5

Phosphocreatine

Answer 5

Provides a rapid source of high-energy ATP for muscle

Question 6

Smooth Muscle (location)

Answer 6

Hollow structures of the body

Ex: intestines, blood vessels, and urinary tract

Question 7

Cardiac Muscle (describe it)

Answer 7

• striated
• autonomic
• it’s the only muscle found in the heart

Question 8

Aponeurosis

Answer 8

wide and flat

Question 9

What extends the wrist and in-conjunction with what?

Answer 9

Extensor Digitorum

Question 10

Rectus Abdominis

Answer 10

Develop when you do sit-ups

Question 11

Tendonitis

Answer 11

inflammation of the tendon

Question 12

Flexors

Answer 12

bends limbs at the joint

Question 13

Abductors

Answer 13

away

Question 14

Adductor

Answer 14

bring together

Ex: bring your thighs together

Question 15

Levators

Answer 15

muscle that raises a part of the body

Question 16

Frontalis

Answer 16

elevates eyebrows, wrinkles skin of forehead

Question 17

Aerobic

Answer 17

with oxygen

Ex: cardio

Question 18

Anaerobic

Answer 18

without oxygen

Ex: lifting weights

Question 19

Nervous system

Answer 19

controls and interrogates all other body systems

Question 20

What does the CNS consist of?

Answer 20

brain and spinal cord

Question 21

Nerve

Answer 21

bundle of nerve cells

Question 22

Schwann Cells

Answer 22

form myelin sheaths around nerve fibers in the PNS

AKA: neurolemmocytes

Question 23

Efferent Neuron

Answer 23

the nerve fibers responsible for carrying signals from the brain to the peripheral nervous system in order to initiate an action

AKA: motor

Question 24

Repolarization

Answer 24

sodium-potassium pump operates to restore the original charge

Question 25

Synapses

Answer 25

these synapses are one-way junctions that ensure that the nerve impulse travels into only one direction

Question 26

Difference between Nerve and Tract

Answer 26

Nerve: Outside PNS

Tract: Inside CNS

Question 27

Spinal Cord (continuation of what)

Answer 27

medulla oblongata of the brainstem

Question 28

Cerebrospinal Fluid

Answer 28

Shock absorber for the CNS

Question 29

Reticular Formation

Answer 29

Functions in maintaining consciousness and arousal

Question 30

Pineal Gland

Answer 30

Secretes melatonin which affects our moods and behavior

Question 31

Infundibulum

Answer 31

part of the hypothalamus that connects to the pituitary gland

Question 32

Occipital Lobe

Answer 32

Functions in receiving and interpreting visual input

Key word: visual

Question 33

Sympathetic Division

Answer 33

fight or flight

Question 34

Sclera

Answer 34

outermost layer of the wall of the eye

Question 35

Iris

Answer 35

colored part of the eye

Question 36

Vitreous Humor

Answer 36

It helps maintain the round shape of the eye and can also help with vision clarity and shock absorbance

Question 37

Retina

Answer 37

innermost layer of the eye

Question 38

Cones

Answer 38

light-sensitive cells

AKA: rods and cones

Question 39

Tympanic Membrane

Answer 39

eardrum

Question 40

Semicircular Canals

Answer 40

balance