Exam 3 Flashcards

(45 cards)

1
Q

What is the term for turning the soles of the feet inwards

A

inversion

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2
Q

Which of the following types of joints is slightly movable

A

amphiarthrotic

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3
Q

The connection between the diaphysis and epiphysis of a young bone can be considered

A

Synchondrosis

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4
Q

What is the term for a joint that is a cone shape process fastened in a boney socket by ligament

A

Gomphosis

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5
Q

Which of the following is an example of gomphosis

A

tooth alveoli

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6
Q

The two pubic bones are held together on the anterior surface by a

A

Symphasis

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7
Q

The type of joint between the adult frontal and parietal bone is classified as

A

fibrous

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8
Q

The parietal and temporal bones are joined by

A

sutures

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9
Q

Standing on ones toes is an example of

A

plantar flexion

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10
Q

Which of the following types of joint is immovable

A

synarthrosis

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11
Q

This is the term for the study of movement of the body

A

Kinesiology

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12
Q

The shoulders is an example of a

A

ball and socket joint

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13
Q

The movement called an _________will move appendages away from the midline of the body

A

abduction

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14
Q

Myofibrils are composed mostly of

A

actin and myosin

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15
Q

Athletes usually experience muscle fatigue less quickly than nonathletes because they

A

produce less lactic acid.

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16
Q

Which type of connection would be found on your rectus abdominus

A

aponeuroses

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17
Q

Arrange the following steps for contraction in the correct sequence.

  1. The muscle impulse reaches the sarcoplasmic reticulum and calcium is released.
  2. Thin filaments are pulled over the thick filaments.
  3. Calcium floods the sarcoplasm and binds to troponin molecules leaving active sites.
  4. The impulse arrives at the synapse and travels through the transverse tubules.
  5. The muscle fiber shortens and contracts.
  6. Tropomyosin molecules bind to exposed active sites, linking actin and myosin
A

4, 1, 3, 6, 2, 5

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18
Q

Which organ converts lactic acid back to glucose

A

the livers

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19
Q

The muscle cell membrane is termed

20
Q

The chemicals that crosses a neuromuscular gap is

A

neurotransmitter

21
Q

Which molecule is produced during exercise resulting in oxygen debt

22
Q

Which of the following muscle are found in the stomach or blood vessels

23
Q

A group of skeletal muscle fibers is called

24
Q

Which of the following would be located in the thigh area

A

bicep femoris

25
This type of muscle would have 2 origins
biceps
26
A single contraction of a muscle is called a
twitch
27
Since smooth muscle fibers have rhythmically and can stimulate each other they contract in a pattern called
peristalsis
28
This muscle would be located in the chest region
pectoralis major
29
This muscle is also known as the calf muscle
gastrocnemius
30
Which of the following ions is the first to leave neurons during repolarization
K+
31
The cells that produce myelin in PNS are the
Schwan cells
32
Which of the following is only under voluntary controls
Mouth
33
Which of the following cells are not found in the CNS
Schwann cell
34
The phagocytic cells in the CNS are the
microglia
35
The resting potential of a a neuron is
-70 mV
36
The threshold potential of a neuron is
-55 mV
37
The central nervous system is comprised of the
brain and spinal chord
38
The most common neurotransmitter in the body is
acetylcholine
39
The cells that produce myelin in the CNS
oligodendrocytes
40
Which of the following is not associated with depolarization
Chlorine
41
At the peak of an action potential the neuron can reach as high
+40 mV
42
This type of neurotransmitter is a natural opiate
Endorphins
43
What part of a neuron is directly involved with protein synthesis
Nissi body
44
Which of the following neurotransmitter is the "feel good' transmitter?
Dopamine
45
This type of neurotransmitter is responsible for slurred speech and impaired motor skills is under the influences of drug or alcohol
inhibitory