Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Anatomy and Physiology I Lab > Lesson 8 > Flashcards

Lesson 8 Flashcards

1
Q

muscles can be classified by their _____

A

function

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

muscle classification: agonists

A

prime moves, primarily responsible for producing a particular movement

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

muscle classification: antagonists

A

oppose, restrict, or reverse a movement

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

muscle classification: synergists

A

aid the action of agonists

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

muscle classification: ficators

A

specialize synergists that immobilize the origin of the agonist muscle so all tension is exerted at the insertion

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

muscles are named on the basis of these 7 things

A
  1. direction of the fibers
  2. relative size
  3. location
  4. number of origins
  5. location of the origin/insertion
  6. shape of the muscle
  7. action of the muscle
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

head and neck: epicranius frontalis

A

epicranius frontal belly
- origin: epicranial aponeurosis
- insertions: skin of the eyebrows and root of the nose

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

head and neck: epicranial aponeurosis

A

area between the frontal belly and occipital belly of the epicranius

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

head and neck: epicranius occipitalis

A

epicranius occipital belly
- origins: occipital and temporal bones
- insertion: epicranial aponeurosis

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

head and neck: orbicularis oculi

A

close eyes and pull down the eyebrows

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

head and neck: orbicularis oris

A

close or protrude lips

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

head and neck: masseter

A

closes the jaw
- origins: zygomatic arch and maxilla
- insertions: the angle and ramus of the mandible

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

head and neck: temporalis

A

closes the jaw
- located on the temporal bone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

head and neck: platysma

A

opens the jaw and pulls the lower lip down
- origin: over the pectoral muscles
- insertions: lower margin of the mandible, skin, and muscles at the mouth center

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

head and neck: sternocleidomastoid

A

neck flexion and head rotation towards the shoulder
- origins: manubrium of the sternum and the medial portion of the clavicle
- insertions: mastoid process of the temporal bone, and superior nuchal line of the occipital bone

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

head and neck: digastric anterior belly

A

opens jaw and elevates the hyoid bone
- origins: lower margin of the mandible and mastoid process
- insertion: connective tissue loop of the hyoid bone
portion of the muscle that is medial

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

head and neck: digastric posterior belly

A

opens the jaw and elevates the hyoid bone
- origins: lower margin of the mandible and mastoid process
- insertion: connective tissue loop of the hyoid bone
portion of the muscle that is lateral

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

head and neck: mylohyoid

A

elevates the hyoid bone and the base of the tongue
deep to the digastric muscle

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

head and neck: sternohyoid

A

depresses the larynx and hyoid bone
inferior to the hyoid bone

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

anterior thorax and shoulder: deltoid

A

abducts the arm, flexes/extends/rotates the humerus

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

anterior thorax and shoulder: pectoralis major

A

adducts and rotates medially the arm and pulls the chest upward for inhalation
- origins: clavicle, sternum, cartilage of ribs 1-6, and the aponeurosis of the external obliques
- insertions: short tendons into the intertubercular sulcus of the humerus

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

anterior thorax and shoulder: pectoralis minor

A

moves the scapular in the anterior/inferior movements and raises the ribs during inhalation

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

anterior thorax and shoulder: serratus anterior

A

fixes the scapula for arm abduction, essential for raising the arm, and pulls the scapula anteriorly/inferiorly

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

abdominal wall: rectus abdominis

A

flexes the vertebral column, depresses the ribs, and compresses the abdomen during exhalation
- origins: pubic crest and symphysis
- insertions: xiphoid process and costal cartilage of ribs 5-7
deep to the external oblique

25
Q

abdominal wall: external oblique

A

flexes the vertebral column, depresses the ribs, rotates the trunk, and compresses the abdomen during exhalation

26
Q

abdominal wall: internal oblique

A

flexes the vertebral column, depresses the ribs, rotates the trunk, and compresses the abdomen during exhalation
deep to external obliques

27
Q

abdominal wall: transversus abdominis

A

compresses the abdomen during exhalation
deep to internal obliques and rectus abdominis

28
Q

posterior trunk: trapezius

A

extends the head, adducts the scapula and lateral clavicle

29
Q

posterior trunk: latissimus dorsi

A

extends, adducts, and medially rotates the arm

30
Q

upper arm: triceps brachii - posterior compartment

A

lateral, long, and medial head
extends the forearms

31
Q

upper arm: biceps brachii - anterior compartment

A

flex the forearm
- origins: short head - coracoid process; long head - intertubercular sulcus and within the capsule of the shoulder joint
- insertion: radial tuberosity

32
Q

upper arm: brachioradialis - anterior compartment

A

flexes the forearm

33
Q

upper arm: brachialis - anterior compartment

A

flexes the forearm

34
Q

forearm: pronator teres - anterior compartment

A

pronates and weakly flexes the arm

35
Q

forearm: flexor carpi radialis - anterior compartment

A

flexes the hand at the wrist
- origin: medial epicondyle of the humerus
- insertions: palmar aponeurosis, skin, and fascia of the palm

36
Q

forearm: flexor carpi ulnaris - anterior compartment

A

flexes and adducts the hand at the wrist

37
Q

forearm: extensor carpi radialis - posterior compartment

A

longus and brevis
extends and abducts the hand at the wrist

38
Q

forearm: extensor digitorum - posterior compartment

A

extends fingers and hand at the wrist
- origins: lateral epicondyle of the humerus
- insertions: by four tendons in the distal phalanges of fingers 2-5

39
Q

forearm: extensor carpi ulnaris - posterior compartment

A

extends and adducts the hand at the wrist

40
Q

anterior and medial thigh: iliopsoas

A

flexes the trunk and thigh at the hip

41
Q

anterior and medial thigh: sartorius

A

flexes, abducts, and laterally rotates the thigh
- origins: anterior superior iliac spine
- insertion: by aponeurosis into the medial aspect of the proximal tibia

42
Q

anterior and medial thigh: medial compartment - adductor group

A

adduct, flex, and medially rotates the thigh

43
Q

adductor group (3)

A
  • adductor magnus
  • adductor longus
  • adductor brevis
44
Q

anterior and medial thigh: medial compartment - pectineus

A

adducts, flexes, and medially rotates the thigh

45
Q

anterior and medial thigh: medial compartment - gracilis

A

adducts, flexes, and medially rotates the thigh

46
Q

anterior and medial thigh: anterior compartment - quadriceps femoris

A

extends the lower leg at the knee and flexes the thigh
- origins: anterior inferior iliac spine and superior margin of acetabulum
- insertions: tibial tuberosity and patella

47
Q

parts of quadriceps femoris

A

rectus femoris
vastus lateralis
vastus intermedius
vastus medialis

48
Q

anterior and medial thigh: anterior compartment - tensor fasciae latae

A

flex, abduct, and medially rotates the thigh

49
Q

hip and posterior thigh: gluteus maximus

A

laterally rotates, abducts, and extends the thigh
- origins: dorsal ilium, sacrum, and coccyx
- insertions: gluteal tuberosity of the femur and iliotibial tract

50
Q

hip and posterior thigh: gluteus medius

A

abducts and medially rotates the thigh

51
Q

hip and posterior thigh: posterior compartment - biceps femoris

A

extends the thigh, laterally rotates the leg, and flexes the knee
long and short heads

52
Q

hip and posterior thigh: posterior compartment - semitendinosus

A

extends the thigh, medially rotates the leg, and flexes the knee

53
Q

hip and posterior thigh: posterior compartment - semimembranosus

A

extends the thigh, medially rotates the leg, and flexes the knee

54
Q

lower leg: lateral compartment - fibularis longus

A

plantar flex and everts foot
- origins: head and upper portion of the fibula
- insertions: by long tendon under the foot to metatarsal 1 and medial cuneiform

55
Q

lower leg: anterior compartment - tibialis anterior

A

dorsiflexes and inverts the foot

56
Q

lower leg: anterior compartment - extensor digitorum longus

A

dorsiflexes the foot and extends the toes

57
Q

lower leg: posterior compartment - triceps surae

A

plantar flexes the foot
- origins: by two heads from the medial and lateral condyles of the femur
- insertion: calcaneus via calcaneal tendon

58
Q

the triceps surae is composed of…

A

gastrocnemius lateral and medial head
soleus

59
Q

lower leg: posterior compartment - flexor digitorum longus

A

flexes toes, plantar flexes, and inverts foot

Anatomy and Physiology I Lab (14 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions