Naming Skeletal Muscles

Question 1

Decreases the angle at a joint, brings 2 bones closer together

Answer 1

Flexion

Question 2

Opposite of flexion

Answer 2

Extension

Question 3

Extension greater than 180 degrees is

Answer 3

Hyperextension

Question 4

Bone moves around longitudinal axis

Answer 4

Rotation

Question 5

Moving limb away from the midline also applies to fanning moving of the fingers and toes when they are spread apart

Answer 5

Abduction

Question 6

Opposite of abduction

Answer 6

Adduction

Question 7

Flexion, extension, adduction, abductor combination, ball and socket

Answer 7

Circumduction

Question 8

End of limb is stationary

Answer 8

Proximal

Question 9

End moves in a circle

Answer 9

Distal

Question 10

Standing in heels, moving foot to bring superior surface closer to the skin

Answer 10

Dorsiflexion

Question 11

Pointing toes, walking on toe “bottom on foot”

Answer 11

Plantar flexion

Question 12

Turn sole medically (in)

Answer 12

Inversion

Question 13

Turn sole laterally (out)

Answer 13

Eversion

Question 14

Forearm rotates laterally, palms up

Answer 14

Supination

Question 15

Palms down

Answer 15

Pronation

Question 16

Move thumb to touch tips of other fingers on the same hand

Answer 16

Opposition

Question 17

Mus

Answer 17

Mouse

Question 18

Muscle

Answer 18

Little mouse

Question 19

• attached to body’s skeleton
• multinudeated cells
• smooth the body’s contour
• striated
• voluntary
• can be activated by reflexes
• contract rapidly with great force
• fatigues easily

Answer 19

Skeletal muscle

Question 20

• no striations
• involuntary
• stomach, bladder,respiratory passages
• one nucleus in each cell
• found in sheets or layers
• contractions are slow and long
• not easily fatigued

Answer 20

Smooth muscle

Question 21

• heart only
• striated
• involuntary
• branching cells

Answer 21

Cardiac muscle

Question 22

What are the muscle functions ?

Answer 22

1. Movement
2. Maintaining posture
3. Stabilize joints
4. Generatic heat

Question 23

• attachment to the Immoveable bone, or less moveable bone

Answer 23

Origin

Question 24

Attached to the moveable bone

Answer 24

Insertion

Question 25

Visible movement

Answer 25

Isotonic

Question 26

Contraction against something Immoveable

Answer 26

Isometric

Question 27

Disuse, muscle gets smaller

Answer 27

Atrophy

Question 28

Excessive muscle size

Answer 28

Hypertrophy

Question 29

Either a muscle cell contracts or it doesn't

Answer 29

All-or-nothing law

Question 30

Contraction without relaxation

Answer 30

Tetanus

Question 31

Caused by bacteria that live in soil and they (bacteria) don't like high oxygen environment

Answer 31

Tetanus (disease)

Question 32

Where neurons and muscle fibers meet there is a synapse at the junction

Answer 32

Neuromuscular junction

Question 33

A neuron and all of the muscle fibers it causes to move (can be few or hundreds)

Answer 33

Motor unit

Question 34

Continuous partial contraction of muscles -- keeps you upright

Answer 34

Muscle tone

Question 35

Loss of muscle tone

Answer 35

Flaccid

Question 36

Benefits of aerobic exercise

Answer 36

- stronger muscles - more flexible muscles - greater resistance to fatigue - blood supply to muscle increases - cells form more mitochondria - cells store more oxygen - makes metabolism more efficient - improves digestion and elimination - enchases coordination - makes the skeleton stronger - heart enlarges to pump more blood with each beat - fat deposits cleared - lungs become more efficient - doesn't cause much increase in muscle size

Question 37

Direction of fibers are:

Answer 37

Rectus: up and down Oblique: on the diagonal Orbicularis: circle

Question 38

Relative size:

Answer 38

Maximus: big Minimus: little Longus: long

Question 39

Location:

Answer 39

Frontalis: frontal bone

Question 40

Number of origins: (attachments)

Answer 40

Biceps: 2 Triceps: 3 Quadriceps: 4

Question 41

Location of the muscles origin and insertion:

Answer 41

Sternocleidomastoid Sterno: sternum Cleido: clavicle Mastoid: mastoid process on the temporal bone

Question 42

Shape:

Answer 42

Deltoid: heat

Question 43

Action:

Answer 43

Flexor: bringing 2 bones closer together Extensor: not flexing, 180 movement Adductor: moving away from midline

Question 44

Myo

Answer 44

Muscle

Question 45

Sacro

Answer 45

Flesh

Question 46

Is a broad sheet of connective tissue that connects muscles to each other or muscles to bones

Answer 46

Aponeurosis