Answers
1. Neural Circuitry that travels outside the spinal cord Peripheral nervous system
2. A sensory receptor within a muscle that detects Muscle Spindle
changes in length and helps regulate contraction
3. Branches of the cell body that act as receivers, collect- Dendrites
ing information from other neurons
4. Muscle contraction is triggered when the following acetylcholine
chemical neurotransmitters binds to receptors on the
muscle
5. Division of the peripheral nervous system controls somatic nervous system
voluntary movement
6. Type of motor unit can contract for many hours Slow of Motor Unit
7. Type of motor unit has a large motor neuron & con- Fast Fatiguable (FF)
sists of a large bundle of type IIx muscle fibers
8. Voluntary movement starts in Cerebral Cortex
9. The process that allows a muscle spindle to contract Alpha-gamma Co-activa-
at the same rate as the muscle where it resides tion
10. How many nerves are contained within the peripheral 43 Pairs
nervous system
11. The muscular system includes how many muscles approximately 650
12. Muscle fiber type that's the largest & produce the Type IIx
most amount of force
13. Cross-bridge cycle requires energy, which is provided ATP hydrolysis
by
,14. The function of epimysium is too Protect muscle from fric-
tion against other muscles
or bone.
15. Muscle fiber type has a very small amount of mito- Type IIx
chondria
16. Make-up of a person's muscle fiber ratio It can't be changed to a
large degree
17. Training with heavy loads causes Equal growth of type I and
type II fibers
18. Functions like girdles & guy wires to provide an inter- Fascia
connected structure
19. Three possible mechanisms for inducing hypertrophy Mechanical tension,
metabolic stress, muscle
damage
20. functional units that can make a muscle shorten Sarcomere
21. Found within the appendicular skeleton Bones of the upper & low-
er extremities
22. Movement between 2 adjacent vertebrae is made pos- Facet Joints
sible by
23. Wolff's Law The body responds by in-
creasing or decreasing the
bone's diameter
24. Cartilage plays important rolls such as Bone development
,25. Mature bone cells that maintain a bone's matrix Osteocytes
26. Bone on bone contact that results in joint pain osteoarthritis
27. Elastin allows tissues too regain their original shape
after being stretched
28. The main part or shaft of a long bone Diaphysis
29. Frontal plane is an imaginary plane that divides the Anterior & posterior
body into
30. Angle that a joint rotates around its axis The direction of rotation
31. The smallest blood vessel Capillaries
32. Create more muscular support when performing an Bracing effect of a tight
intense exercise core
33. Largest lymphatic organ in the human body Spleen
34. One of the main functions of the respiratory system removal of waste products
of metabolism
35. Normal amount of air displaced between inhalation & Tidal Volume
exhalation
36. Major glands of he endocrine system Hypothalamus
37. The amount of blood pumped through the heart per Cardiac output
minute
38. Peripheral resistance The amount of resistance
to blood flow in the arter-
ies.
, 39. Plasma makes up percentage of blood volume 55%
40. Right atrium receives deoxygenated blood from the The right Ventricle
body & moves it too
41. Law of conservation of energy states that energy cannot be created or de-
stroyed
42. In short term, metabolic acidosis can impair muscle power &
energy production
43. Process of making ATP from glucose Glycolysis
44. Cytoplasm & Sarcoplasm Sarcoplasm is where the
action of the phosphates
system & the reaction
components take place
45. The time it takes to fully replenish stored phosphocre- 15-25 minutes
atine after maximum effort exercise
46. The formation of glucose from noncarbohydrate gluconeogenesis
sources
47. Lactate threshold corresponds with Rapid drop in physical
output & performance
48. Actions occur within the mitochondria during the first Mitochondria absorb pro-
10-30 seconds of maximal activity tons (H+)
49. Enzyme breaks down triglycerides into fatty acids dur- Hormone-sensitive lipase
ing lipolysis
50. Fuel type produces 106 ATP Fatty acids