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NASM CPT7 > Ch. 5 The Nervous, Muscular, and Skeletal Systems > Flashcards

Ch. 5 The Nervous, Muscular, and Skeletal Systems Flashcards

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1
Q

Human movement system (HMS)

A

The collective components and structures that work together to move the body: muscular, skeletal, and nervous systems.

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2
Q

Kinetic chain

A

A concept that describes the human body as a chain of interdependent links that work together to movement.

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3
Q

Nervous system

A

A network of neurons that transmit and coordinate signals, providing a communication network within the human body.

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4
Q

Neuron

A

Specialized cell that is the functional unit of the nervous system.

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5
Q

Nucleus

A

Cellular structure or organelle that contains the majority of the cell’s genetic material in the form of chromosomes.

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6
Q

Organelles

A

Tiny cellular structures that perform specific functions within a cell. Examples include nuclei, mitochondria, lysosomes, ribosomes, and the endoplasmic reticulum.

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7
Q

Mitochondria

A

The parts of the cell that use nutrients to create energy for the cell, commonly known as the powerhouse of the cell.

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8
Q

Effector sites

A

A part of the body, such as a muscle or organ, that receives a signal from a neuron to produce a physiological response.

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9
Q

Electrolytes

A

Minerals that have an electrical charge to help transmit nerve impulses throughout the body, such as sodium, potassium, and magnesium.

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10
Q

Central nervous system (CNS)

A

A division of the nervous system that includes the brain and spinal cord.

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11
Q

Peripherals nervous System (PNS)

A

Nerves that connect the rest of the body to the Central Nervous System (CNS)

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12
Q

Afferent pathway

A

Sensory pathway that relays information to the central nervous system.

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13
Q

Efferent pathway

A

A motor pathway that relays information from the central nervous system (CNS) to the rest of the body.

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14
Q

Interneurons

A

Neurons located within the spinal cord and brain that transmit impulses between afferent and efferent neurons.

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15
Q

Mechanoreceptors

A

Specialized structures that respond to mechanical forces (touch and pressure) within tissues and then transmit signals through sensory nerves.

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16
Q

Somatic Nervous System

A

Nerves that serve the outer areas of the body and skeletal muscle and are largely responsible for the voluntary control of movement.

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17
Q

Autonomic Nervous system

A

A division of the peripheral nervous system that supplies neuronal input to organs that run the involuntary processes of the body (e.g., circulating blood, digesting food, producing hormones).

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18
Q

Sympathetic Nervous System

A

Subdivision of the autonomic nervous system that work to increase neural activity and put the body in a heightened state.

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19
Q

Parasympathetic nervous system

A

Subdivision of the autonomic nervous system that works to decrease neural activity and put the body in a more relaxed state

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20
Q

Sensory function

A

Ability of the nervous system to sense changes in either the internal or external environment.

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21
Q

Proprioception

A

The body’s ability to naturally sense its general orientation and relative position of its parts.

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22
Q

Integrative function

A

The ability of the nervous system to analyze and interpret the sensory information to allow for proper decision-making, which produces an appropriate response.

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23
Q

Motor function

A

The neuromuscular (or nervous and muscular systems) response to the intergrated sensory information.

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24
Q

Muscle spindles

A

Sensory receptors sensitive to change in length of the muscle and the rate of that change.

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25
Q

Stretch reflex

A

Neurological signal from the muscle spindle that causes a muscle to contract to prevent excessive lengthening.

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26
Q

Golgi tendon organ (GTO)

A

A specialized sensory receptor located at he point where skeletal muscle fibers insert into the tendons of skeletal muscle; sensitive to changes in muscular tension and rate of tension change.

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27
Q

Joint receptors

A

Receptors located in and around the joint capsule that response to pressure, acceleration, and deceleration of the joint.

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28
Q

Neuroplastocoty

A

The concept that the brain will continually change or grow, reforming neural pathways throughout an individual’s entire life span.

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29
Q

Neurocircuitry

A

The interconnection of neurons in the brain and spinal cord.

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30
Q

Motor skills

A

Specific movements through the coordinated effort of the sensory and motor subsystems.

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31
Q

Three-stage process that explains the development of motor skills

A

Stage 1 - (cognitive): The client is just learning a skill. They understand the goal of the skills and develop movement strategies and can perform the skills but with inconsistent performance.

Stage 2 (associative): The client begins to understand the skill. Through practice, they refine the skill and movement strategy and can perform the skill with less error.

Stage 3 (autonomous): The client has mastered the skill. They perform the skill consistently with no error and independently modify the skill without error.

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32
Q

Road map to teaching clients new skills (basked on the three-stage process)

A

During Stage 1 (cognitive), you may need to use simple instructions and break down the skill into smaller steps so your clients will be able to understand the goals of the movement.

During stage 2 (associative), you may need to help refine your clients’ skills through practice and regular feedback.

During stage 3 (autonomous), you may be able to teach your clients new versions of the skill to further challenge them.

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33
Q

Skeletal system

A

A description of the bones of the body.

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34
Q

Osteoproposis

A

A condition of reduced bone mineral density, which increases risk of bone fracture.

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35
Q

Joints

A

The sites where two bones meet and movement occurs as a result of contraction.

36
Q

Axial skeleton

A

A division of the skeletal system consisting of the skull, the rib cage, and the vertebral column.

37
Q

Appendicular skeleton

A

A division of the skeletal system consisting of the arms, legs, and pelvic girdle.

38
Q

Levers

A

Rigid rods where muscles attach

39
Q

Remodeling

A

The process by which bone is constantly renewed by the resorption and formation of the bone structure.

40
Q

Osteoclasts

A

Special cell that break down and remove old bone tissue.

41
Q

Wolff’s law

A

Scientific explanation of how remodeling (new bone growth) occurs along the lines of stress placed on the bone.

42
Q

Depressions

A

Flattened or indented portions of bone.

43
Q

Processes

A

Projections protruding from the bone where tendons and ligaments can attach.

44
Q

Vertebral Column

A

Bones that house the spinal cord; consists of the cervical, thoracic, and lumbosacral regions.

45
Q

Spinal Cord

A

Bundle of nerves housed within the vertebrae

46
Q

Structures of the spine

A

Breakfast at 7 am = 7 cervical vertebrae at the neck

Lunch at 12 pm = 12 thoracic vertebrae at the mid-back

Dinner at 5 pm = 5 lumbar vertebrae at the low-back

47
Q

Intervertebral discs

A

Fibrous cartilage structures between vertebrae that act as shock absorbers and assist with movement.

48
Q

Neutral spine

A

Represents a position in which the vertebrae and associated structures are under the least amount of load and can most optimally support functional movement. S shape

49
Q

Osteokinematics

A

Movement of a limb that is visible

50
Q

Arthrokinematics

A

The descriptions of joint surface movement; consists of three major types: roll, slide, and spin.

51
Q

Synovial joints

A

A joint with fluid-filled joint capsule.

52
Q

Noaxial

A

A gliding joint that moves in only one place, either back and forth or side to side.

53
Q

Nonsynovial joints

A

Points that have no joint capsule, fibrous connective tissue, or cartilage in the uniting structure.

54
Q

Ligament

A

A fibrous connective tissue that connects bone to bone.

55
Q

Collagen

A

A protein found in connective tissue, muscles and skin that provides strength and structure. It is the most abundant protein in the human body.

56
Q

Elastin

A

A protein that provides elasticity to skin, tendons, ligaments, and other structures.

57
Q

Growth plate

A

A specialized cartilage disc located in the epiphysis that is responsible for longitudinal bone growth.

58
Q

Skeletal muscle

A

The type of muscle tissue that connects to bones and generates the forces that create movement.

59
Q

Fascia

A

Connective tissue that surrounds muscles and bones.

60
Q

Epimysium

A

Inner layer of fascia that directly surrounds an entire muscle, commonly referred to as the “deep fascia.”

61
Q

Fascicles

A

Largest bundles of fibers within a muscle. Fascicles are surrounded by perimysium.

62
Q

Perimysium

A

Connective tissue surrounding a muscle fascicle.

63
Q

Endomysium

A

Connective tissue that wraps around individual muscle fibers withink a fascicles.

64
Q

Glycogen

A

Glucose that is deposited and stored in bodily tissien, such as the liver and Muscat cells; the storage form of carbohydrate.

65
Q

Myoglobin

A

Protein-based molecule that carries oxygen molecules into the muscles.

66
Q

Myofibrills

A

The contractile components of a muscle cell; the myofilaments (actin and myosin) are contained within a myofibril.

67
Q

Myofilaments

A

The finale nets of a myofibril; include actin and myosin.

P. 142

68
Q

Actin

A

The thin string like myofilament that acts along with myosin to produce muscular contraction.

69
Q

Myosin

A

The thick myofilament that acts along with actin to produce muscular contraction.

70
Q

Sarcomere

A

The structural unit of a myofibibril composed of actin and myosin filaments between two Z-lines.

71
Q

Z-line

A

The meeting point of each sarcomere.

72
Q

Neutral activity

A

The nervous system’s signal that tells a muscle to contract.

73
Q

Neuromuscular junction

A

The specialized site where the nervous system communicates directly with muscle fibers.

74
Q

Synapses

A

A junction or small gap between the motor neuron and muscle cells.

75
Q

Motor unit

A

A nitro neuron and all of the muscle fibers that it innervates.

76
Q

Action potential

A

Nerve impulses that is relayed from the central nervous system, through the peripheral nervous system, and into the neuromuscular junction.

77
Q

Muscle Anatomy Flowchart

A 
Muscle: ..
⬇️
Fascicle:
⬇️
Muscle fiber:
⬇️
Myofibril:
⬇️
Sarcomere:
⬇️
Myofilament: the individual portion structures, actin and myosin, that make up a myofibril.

P. 143

78
Q

Neurotransmitters

A

Chemical messengers that cross the synapse between neuron and muscle and assist with nerve transmission.

79
Q

Acetylcholine (ACh)

A

A neurotransmitter that helps the action potential cross the synapse into the muscle, which initiates the steps in a muscle contraction.

80
Q

Sliding filament theory

A

The series of steps in muscle contraction involving how myosin (thick) and actin (thin) filament slide past one another to produce a muscle contraction, shortening the entire length of the sarcomere.

81
Q

Excitation-contraction coupling

A

The physiological process of converting an electrical stimulus to a muscle contraction.

82
Q

Power Stroke

A

The myosin heads bind to actin and pull them toward the sarcomere center, which slides the filaments past each other, shortening the muscle.

83
Q

Adenosine triphosphate (ATP)

A

A high-energy molecule that serves as the main form of energy in the human body; known as the energy currency of the body.

84
Q

Resting length

A

The length of a muscle when it is not actively contracting or being stretched.

85
Q

Type I (slow twitch) muscle fibers

A

Muscle fibers that are small in size, generate lower amounts of force, and were more resistant to fatigue

NASM CPT7 (5 decks)

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