Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Anaphy Class > Muscular System > Flashcards

Muscular System Flashcards

1
Q

3 Types of Muscle:

A

Skeletal Muscle, Cardiac Muscle, Smooth Muscle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Muscle Cells that are elongated.

A

Muscle Fibers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

The ability of a muscle to shorten forcefully, or contract.

A

Contractility

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

The capacity of muscle to respond to a stimulus.

A

Excitability

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

A muscle can be stretched beyond its normal resting length and still be able to contract.

A

Extensibility

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

The ability of a muscle to recoil to its original resting length after it has been stretched.

A

Elasticity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Large, cigar-shaped, multinucleate cells with obvious striations; largest muscle fibers.

A

Skeletal Muscle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Speed of contraction of a Skeletal Muscle.

A

Slow to fast

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Found only in heart where it forms the bulk of the heart walls.

A

Cardiac muscle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Speed of contraction of a cardiac muscle.

A

Slow

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Found mostly in the walls of hollow visceral organs.

A

Smooth Muscle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Speed of Contraction of a Smooth Muscle.

A

Very Slow

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What are the connective tissue coverings?

A
  1. Tendons
  2. Epimysium
  3. Perimysium
  4. Endomysium
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

It is the muscular fascia.

A

Epimysium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

It covers the fasicle.

A

Perimysium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

It covers muscle fibers.

A

Endomysium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Types of Skeletal Muscle Fibers:

A

Chemical Component Structures, Mechanical Component Structures

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Electrical Component Structures are consist of:

A

Sarcolemma, Trasverse tubules (T tubules), Sarcoplasmic Reticulum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

It is the plasma membrane.

A

Sarcolemma

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Carry electrical impulses into the center of the muscle fiber to contract in unison.

A

Transverse Tubules (T-tubules)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Highly specialized smooth endoplasmic reticulum in skeletal muscle fibers that stores high levels of calcium.

A

Sarcoplasmic Reticulum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Mechanical Component Structures are consists of:

A

Myofibrils, Myofilaments

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

A globular subunits that has an active site fo4 myosin.

A

G Actin Molecules

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Long, fibrous protein covering the active sites on the G actin.

A

Tropomyosin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
It is attached at specific intervarls along the actin myofilaments; a subunit that binds Ca2+.
Troponin
26
2 myosin heavy chains.
Rod Portion
27
Nane the 2 Myosin Heads.
Myosin light chains and Hinge Region
28
The basic structural and functional unit of a skeletal muscle. It is the smallest portion of a skeletal muscle capable of contracting.
Sarcomeres
29
Gap between nerve endings and sarcolemma.
Synaptic Cleft
30
Contains a neurotransmitter called a ACETYLOCHOLINE.
Synaptic Vesicles
31
Chemical that stimulates skeletal muscle fiber.
Neurotransmitter
32
Electrical current generated by the Na+ -K+ pump.
Action Potential
33
Boundary of each sarcomere.
Z-Disks
34
Contains only actin myofilaments (including Z-disks).
I Band
35
Contains both actin and myosin myofilaments.
A Band
36
Give the 2 Types of Muscle Contractions:
Isotonic Contraction and Isometric Contraction
37
This type of contraction increases the tension in the muscle while the length of the muse decreases (muscle shortens).
Isotonic Contraction
38
This type of contraction increases the tension in the muscle, but the length of the muscle stays the same ( no muscle shortening).
Isometric Contraction
39
Raise eyebrows, wrinkle forehead.
Frontalis
40
Close eyes, wink, blink.
Orbicularis oculi
41
Closes mouth, protudes lips.
Orbicularis Oris
42
Flattens the cheek (blow, whistle)
Buccinator
43
Raises corners of mouth (smiling)
Zygomaticus
44
Closes the jaw by elating mandible.
Masseter
45
Assists masseter in closing the jaw.
Temporalis
46
It is a condition that causes a temporary weakness or paralysis of the muscles in the face.
Bell's Palsy
47
Controls the Facial Nerves.
Cranial Nerve 7
48
It is a neck muscle that is downward sag of the mouth (the sad clown face).
Platysma
49
It is a neck muscle that is paired; one on each side of the neck.
Sternocleidomastoid
50
Disorder characterized by a shortening of at least one of the cervical muscles and biting of the head to the opposite side.
Congenital Muscular Torticollis (Wryneck)
51
Muscles that covers the upper part of the chest; forms the anterior part of the axilla/armpit.
Pectoralis Major
52
Deep muscles found between the ribs.
Intercostals
53
Help to raise your ribcage when you inhale.
External intercostals
54
Depress the ribcage, helping to move air out of the lungs when you exhale forcibly.
Internal Intercostals
55
Most superficial; flexion/bending the spine, compress during defecation and childbirth.
Rectus Abdominis
56
Flexion, rotation, lateral bending of trunk.
External & Internal Obliques
57
Deepest; compresses abdominal contents.
Transverse abdominis
58
Most superficial muscles of the posterior neck and upper trunk, elevate, depress, and stabilize the scapula.
Trapezius
59
Lower Trunk; Swimmer's muscl; shoulder extension, adduction, internal rotation.
Latissimus Dorsi
60
Form the rounded shape of shoulders; shoulder flexion, extension, abduction, internal and external rotation.
Deltoid
61
Form the rounded shape of shoulders; shoulder flexion, extension, abduction, internal and external rotation.
Deltoid
62
Deep muscles of the back; prime mover for back extension; common cause of low back pain.
Erector Spine
63
Muscles form part of the posterior abdominal wall; lateral bending and back extension.
Quadratus Lumborum
64
Medially rotates arm (internal rotation).
Supraspinatus
65
Laterally rotates arm (external rotation).
Infraspinatus
66
Abducts arm
Teres Minor
67
Laterally rotates and abducts arm.
Subscapularis
68
Condition where the connective tissues between your muscles and bone (tendons) become inflammed due to overuse and repetitive activities.
Tendinitis
69
Painfull swelling of a small, fluid-filled padding called "bursa"; usually fo7nd on areas where bone rubs to muscle due to injury or overuse.
Bursitis
70
Injury to auscle or tendon where it is overstretched or torn.
Muscle/Tendon Strain or Tear
71
Compression or pinching of rotator cuff muscles.
Shoulder Impingement
72
Powerful prime mover of elbow flexion and forearm supination.
Biceps Brachii
73
Elbow flexion when forearm is pronated.
Brachialis
74
Only posterior muscle on humerus; elbow extension.
Triceps Brachii
75
Flexion of WHF, adduction of wrist.
Anterior Forearm
76
Extension of WHF, Abduction of wrist.
Posterior Forearm
77
Superficial muscle of the hip that forms the buttocks; hip extension.
Gluteus Maximus
78
Hip abductor and is important in steadying the pelvis during walking.
Gluteus Medius
79
Prime mover of hip flexion; keep the upper body from falling backward when we are standing erect.
Iliopsoas
80
Medial side of each thigh, adduct or press the thighs together.
Adductor Muscles
81
Anterior thigh; primary mover of knee extension.
Quadriceps group
82
Thin and strap-like; tailor's muscle, weak thigh flexor.
Sartorius
83
Posterior thigh; primary mover or knee flexion.
Hamstring group
84
Supetficial muscle on the anterior leg, dorsiflexion and inversion of foot.
Tibialis Anterior
85
Laterql to the tibialis anterior; prime mover or toe extension.
Extensor Digitorum Longus
86
Lateral part of leg; plantar flexes and everts the foot.
Fibularis muscles
87
Forms the curved calf of tge posterior leg ; prime mover of plantar flexion of the foot.
Gastrocnemius
88
Attachment to heel of foot.
Achilles Tendon
89
Deep to the gastrocnemius; strong plantar flexor.
Soleus
90
Continuous, involuntary, painful, and localize contraction of an entire muscle group, single muscle or selected muscle fibers.
Muscle Cramps

Anaphy Class (7 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions