a&p exam 4 review

studied byStudied by 59 people
0.0(0)
get a hint
hint

The structure attaches a muscle to bone and helps stabilize a synovial joint?

1 / 72

Studying Progress

0%
New cards
73
Still learning
0
Almost done
0
Mastered
0
73 Terms
1
New cards

The structure attaches a muscle to bone and helps stabilize a synovial joint?

Tendon

New cards
2
New cards

the study of the muscular system

Myology

New cards
3
New cards

Whether secretion is one of the muscular system functions

No? – (they secrete an unidentified hormone they coined musclin)

New cards
4
New cards

The term that best describes muscle fibers arranged in bundles

Fascicle (can also be called myocites) – is a bundle of muscle fibers bound together bound by tissue that provide pathways for blood vessels and nerves

New cards
5
New cards

The muslce shape of which the rectus femoris is an example of

Pennate

New cards
6
New cards

The name of the tissue sheet that seperate individual muscle fibers from each other

Epimysium

New cards
7
New cards

The term that refers to a muscle that prevents a bone from moving during an action

Fixator

New cards
8
New cards

The name of the prime mover muscle for inhalation

Diaphragm

New cards
9
New cards

The structure that connects the frontal and occipital bellies of the occipitofrontal (Epicranius) muscle

<p>Epicranial aponeurosis or also called galea aponeurotica</p>

Epicranial aponeurosis or also called galea aponeurotica

<p>Epicranial aponeurosis or also called galea aponeurotica</p>
New cards
10
New cards

The name of the deepest muscle of the muscles of the abdominal wall

Transverse abdominis

New cards
11
New cards

From a list of muscles, select the muscle that is not externally visible on the trunk of the body**

Transverse Abdominal

New cards
12
New cards

The muscle that is divided by the tendinous intersections into segments that are externally visible on the abdomen of a well-muscled person

Transverse abdominis

New cards
13
New cards

The antagonist muscle to the triceps brachii

Biceps brachii

New cards
14
New cards

The longest muscle in the human body

<p>Sartorius muscle</p>

Sartorius muscle

<p>Sartorius muscle</p>
New cards
15
New cards

From a list of muscles select the muscle that is/isn’t part of the SITS muscles.

Muscles of the Rotator cuff

(S)ubscapularis (I)nfraspinatus (T)eres Minor (S)upraspinatus

New cards
16
New cards

From a list of muscles select the muscle that is/isn’t part of the quadriceps muscles

  • Rectus Formus

  • Vastus Lateralis

  • Vastus Intermedius

  • Vastus Medialis R.TRIPLE V

New cards
17
New cards

From a list of muscles select the muscle that is/isn’t part of the hamstrings

<ul><li><p>Biceps Femoris</p></li><li><p>Semimembranosus</p></li><li><p>Semitendinosus B.S.S</p></li></ul>
  • Biceps Femoris

  • Semimembranosus

  • Semitendinosus B.S.S

<ul><li><p>Biceps Femoris</p></li><li><p>Semimembranosus</p></li><li><p>Semitendinosus B.S.S</p></li></ul>
New cards
18
New cards

From a list of muscles select the muscle that is/isn’t part of the mastication muscle

  • Temporalis

  • Masseter

  • Medial pterygoid

  • Lateral pterygoid muscles o Secondary muscles/accessory  - Buccinator  - Suprahyoid muscles  - Mylohyoid  - Geniohyoid  - Infrahyoid muscles

New cards
19
New cards

The names of the muscles that form(s) the calf muscle

<p>2 main muscles</p><ul><li><p>Gastrocnemius</p></li><li><p>Soleus</p></li></ul>

2 main muscles

  • Gastrocnemius

  • Soleus

<p>2 main muscles</p><ul><li><p>Gastrocnemius</p></li><li><p>Soleus</p></li></ul>
New cards
20
New cards

The property/characteristic of muscle tissue that gives all muscle types the ability respond to electrical stimulus.

Excitability – the ability to respond to stimulus delivered by a neuron or hormone

New cards
21
New cards

The property/characteristic of muscle tissue that refers to the ability of a muscle to stretch

Extensibility – ability to be stretched (Elasticity – ability to recoil back to its original length)

New cards
22
New cards

**The type of conscious control of the skeletal muscle

Voluntary control

New cards
23
New cards

**The number of nuclei contained a skeletal muscle fiber has

Can contain up to several tens (invertebrates) Or several hundred (vertebrates)

New cards
24
New cards

The type of myofilament that runs through the core of a thick filament and anchors it to a Z disc

Elastic filament

New cards
25
New cards

The purpose of the Triad

Allows for Ca2+ to release when a muscle fiber is excited(responding to stimuli)

New cards
26
New cards

**The sarcoplasmic reticulum of a muscle fiber corresponds to what type of cellular organelle in other tissue cells

Endoplasmic Reticulum

New cards
27
New cards

**The components of the triad

<p>T-tubule and 2 adjacent terminal cisternae of the sarcoplasmic reticulum</p>

T-tubule and 2 adjacent terminal cisternae of the sarcoplasmic reticulum

<p>T-tubule and 2 adjacent terminal cisternae of the sarcoplasmic reticulum</p>
New cards
28
New cards

The type of filaments that are predominantly made of myosin

Thick filament

New cards
29
New cards

**The structure that marks the boundaries of a sarcomere

<p>Z-Bands or also called Z-Lines or Z-Discs</p>

Z-Bands or also called Z-Lines or Z-Discs

<p>Z-Bands or also called Z-Lines or Z-Discs</p>
New cards
30
New cards

The band that contains overlapping thick and thin filaments

Myofibril

  • Be thought of as stack of sarcomeres

  • The A-Band (has thick filaments) partly overlapped with thin filaments

New cards
31
New cards

The name of neurons that are specialized to detect stimuli, vs the name of_ neurons that send signals to the effectors of the nervous system.

Specialized to detect stimuli – afferent Neurons that send signals to effectors - efferent

New cards
32
New cards

**The type of neurons (sensory, motor, afferent, efferent, interneuron) that make up more than 90% of the functional neurons in the nervous system

True?

New cards
33
New cards
  1. The most common structural type of neurons (multipolar, bipolar, unipolar, anoxonic)

Multipolar

New cards
34
New cards

**What the term ”nerve fiber” refers to?

The threadlike structural part of the nerve cell

New cards
35
New cards

The name of the glial cell that wraps around nerve fibers in the PNS

The threadlike structural part of the nerve cell

New cards
36
New cards

The name of the glial cell that wraps around nerve fibers in the PNS

<p>Schwann cells</p>

Schwann cells

<p>Schwann cells</p>
New cards
37
New cards

The name of the primary site on a neuron for receiving signals from other neurons?

Dendrite Receive synaptic inputs from axons

New cards
38
New cards

The name of the cells forming myelin sheath in the spinal cord

Oligodendrocytes but schwann cells for the peripheral nervous systems

New cards
39
New cards

The ion that has the greatest influence on the resting membrane potential

Potassium

New cards
40
New cards

The event resulting from opening sodium gates

Depolarization When positively charged ions rush into a neuron with the opening of a voltage gated sodium channels

New cards
41
New cards

From a list of inflowing & outflowing ions, select the one that causes hyperpolarization

Potassium

New cards
42
New cards

The event resulting from the shifting of the voltage of the plasma membrane from +35 to 0 mv

repolarization

New cards
43
New cards

From a list of events, select the one that can occurs during the absolute refractory period

  • Action potential leaves the Na+ channels inactivated and the K+ channels activated for a lil bit

  • This makes it harder for the axon to make subsequent action potentials during this interval (i.e. refractory period)

New cards
44
New cards

The property of neurons that allows them to respond to changes in the environment

excitability

New cards
45
New cards

The term that describes the alternating light and dark bands in a skeletal muscle

Striations

New cards
46
New cards

The protein that acts as a calcium receptor in skeletal muscle

Troponin

New cards
47
New cards

The number of somatic motor neurons needed to stimulate one muscle fiber

Only one

New cards
48
New cards

The structure from which acetylcholine is released to stimulate muscle contraction

The postganglionic

New cards
49
New cards

The effect on the permeability of the sarcolemma to Na+ when acetylcholine stimulates/binds its receptors in the neuromuscular junction

The permeability of the sarcolemma to Na+ increases

New cards
50
New cards

**Choosing the statement that best describes the resting membrane potential in terms of charge type in the intracellular /extracellular membrane environment

Resting membrane potential is the electrical potential or voltage That’s in a plasma membrane of an unstimulated nerve cell

New cards
51
New cards

**The effect of the absence or inhibition of acetylcholinesterase at a synapse

Tetanus would lead to

  • Flaccid plaralysis

  • Tetanus

  • Atrophy

  • Numbness

  • Muscle wasting

New cards
52
New cards

The muscle type that depends solely on the sarcoplasmic reticulum as its calcium source

Skeletal muscle

New cards
53
New cards

The movement of which structure that uncovers the binding sites of myosin during muscle contraction

??

New cards
54
New cards

The structure that forms cross bridges with binding sites on actin myofilaments

Globular heads of myosin

New cards
55
New cards

The part of the muscle cell along which action potential is propagated

the neuromuscular junction (motor end plate or myoneural junction)

New cards
56
New cards

The traveling stimulus that causes the increased calcium ion permeability of the presynaptic terminal cell membrane

??

New cards
57
New cards

The structure to which calcium ions bind during muscle contraction

The troponin molecule

New cards
58
New cards

The terms that describes the minimum stimulus needed to cause muscle contraction

The threshold

New cards
59
New cards

Whether isometric contraction change/does not muscle length

No change in muscle length

New cards
60
New cards

Definition of isotonic contraction

Change in muscle length

New cards
61
New cards

The number of ATP molecules produced by aerobic respiration

38 molecules

New cards
62
New cards

Definition of motor unit

Combination of individual motor neuron and all the muscle fibers that it innervates

New cards
63
New cards

Definition of acetylcholine

A type of neurotransmitter – important in the central and peripheral nervous system

New cards
64
New cards

The descriptive term for the difference in electrical charge from one point to another

The potential difference (btwn those points)

New cards
65
New cards

The descriptive term for excitation-contraction coupling

<p>Referring to series of events that link the action potential (excitation) of the muscle cell membrane (the sarcolemma) to muscular contraction</p>

Referring to series of events that link the action potential (excitation) of the muscle cell membrane (the sarcolemma) to muscular contraction

<p>Referring to series of events that link the action potential (excitation) of the muscle cell membrane (the sarcolemma) to muscular contraction</p>
New cards
66
New cards

The descriptive term for the ability of muscle cells to shorten

Contractility

New cards
67
New cards

The connective tissue layer bundles muscle fibers together into fascicles

Perimysium and/or endomysium tissue

New cards
68
New cards

The cellular source for calcium needed for contraction in skeletal muscles

The sarcoplasmic reticulum

New cards
69
New cards

The role of acetylcholinesterase

An enzyme that catalyzes the breakdown of acetylcholine and some of other choline esters that work as neurotransmitters

To terminate neuronal transmission and signaling btwn synapses to prevent Ach dispersal and activation of nearby receptors

New cards
70
New cards

The characteristics/features of the cardiac muscle tissue

  • Striated

  • Branched

  • Have mitochondria

  • Under involuntary control

  • Single nucleus an centrally located

New cards
71
New cards

The characteristics/features of the smooth muscle tissue?

  • Non striated o Thick and thin filaments that aren’t arranged into sarcomeres

  • Spindle -shaped

  • Have a single central nucleus

New cards
72
New cards

The way by which action potential enters the depth of the muscle fiber

Through the t-tubules system (t=transvers) Starts in the sarcolemma and penetrates the heart of the fibre

New cards
73
New cards

The ion that the sarcolemma of a resting muscle fiber is most permeable to

Potassium – K+

New cards

Explore top notes

note Note
studied byStudied by 10 people
Updated ... ago
5.0 Stars(1)
note Note
studied byStudied by 21 people
Updated ... ago
5.0 Stars(1)
note Note
studied byStudied by 9 people
Updated ... ago
5.0 Stars(1)
note Note
studied byStudied by 2 people
Updated ... ago
5.0 Stars(1)
note Note
studied byStudied by 39 people
Updated ... ago
5.0 Stars(1)
note Note
studied byStudied by 4 people
Updated ... ago
5.0 Stars(1)
note Note
studied byStudied by 9 people
Updated ... ago
5.0 Stars(1)
note Note
studied byStudied by 56 people
Updated ... ago
5.0 Stars(1)

Explore top flashcards

flashcards Flashcard34 terms
studied byStudied by 18 people
Updated ... ago
5.0 Stars(1)
flashcards Flashcard113 terms
studied byStudied by 55 people
Updated ... ago
5.0 Stars(2)
flashcards Flashcard147 terms
studied byStudied by 23 people
Updated ... ago
5.0 Stars(2)
flashcards Flashcard307 terms
studied byStudied by 4 people
Updated ... ago
5.0 Stars(2)
flashcards Flashcard73 terms
studied byStudied by 30 people
Updated ... ago
5.0 Stars(1)
flashcards Flashcard36 terms
studied byStudied by 16 people
Updated ... ago
5.0 Stars(1)
flashcards Flashcard30 terms
studied byStudied by 126 people
Updated ... ago
5.0 Stars(1)
flashcards Flashcard398 terms
studied byStudied by 467 people
Updated ... ago
5.0 Stars(4)