Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Biol235 Quiz 3 > Chapter 11 > Flashcards

Chapter 11 Flashcards

(74 cards)

Start Studying
1
Q

Occipitalfrontalis Frontal belly function

A

Draws scalp anteriorly , raises eyebrows, wrinkles skin horizontally as look of surprise

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

Occipital frontalis occipital belly function

A

Draw scalp posteriorly

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

Orbicularis oris function

A

Closed and protrudes lips as in kissing, compressed lips against teeth, shapes lips during speech

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

Zygomaticus major function

A

Draws angle of lips superiorly and laterally in smiling

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

Bucinator function

A

Pressed cheek against teeth and lips as in whistling, blowing and sucking
Draws corner of mouth laterally
Assists in mastication by keeping food between teeth not cheeks

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

Orbicularis oculi function

A

Closes eye

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

Muscles of mastication

A

Muscles that move mandible at TMJ

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

Masseter origin insertion action

A

O: maxilla and zygomatic arch
I: angle and ramus of mandible
A: elevated mandible as in closing mouth

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

Sternocleidomastoid origin insertion action RMA

A

O: Sternal head of manubrium of sternum, clavicular head, medial third of clavicle
I: mastoid process of temporal bone and lateral half of superior nuchal line of occipital bone
A:
acting bilaterally, flex cervical V, extend head at Atlanto-occipital joints
Acting singularly, laterally flex neck and head to same side and rotate head to opposite side of contracting muscle
Posterior fibers of muscle can assist in head elevation

RMA: elevate sternum durinf forced inhalation

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

Rectus abdominus origin insertion action RMA

A

O: pubic crest and pubic symphysis
I: cartilage or ribs 5-7 and xiphoid process
A: flexes VC especially lumbar, compresses abdomen for defecation, urination, forced exhalation, childbirth

RMA: flexes pelvis on the VC

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

External oblique function

A

Bilaterally: compress abdomen, flex VC
Unilaterally: lateral flex VC especially lumbar, rotate VC

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

Internal oblique function

A

Together: compress abdomen, flex VC
Singly: lateral flex VC especially lumbar, rotate VC

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

Transversus Abdominus insertion action

A

I: xiphoid process, linear albea, pubis
A: compress abdomen

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

Rectus sheaths

A

Aponeuroses of ex/in oblique and transversus abdominus,

Enclosed andominus muscles

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

Lines Alba

A

Tough fibrous band from xiphoid process to pubic symphysis

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

Central tendon

A

Strong aponeuroses located near the center of muscle

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

External intercostals action

A

Contraction=elevated ribs=^anteroposterior/lat of thoracic cavity=inhalation
Relaxation=exhalation

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

Internal intercostals action

A

Contraction=ribs drawn together to further decrease anteroposterior/lateral dimensions of thoracic cavity during FORCED exhalation

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

What are the anterior thoracic muscles (2)

A

Pectoralis minor
Serratus anterior

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

Pectoralis minor action RMA

A

Abducts scapula and rotates downward
RMA: elevates ribs 3-5 during forced inhalation when scapula fixed

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

Serratus Anterior origin insertion action RMA

A

O: ribs 1-8 or 1-9
I: vertebral border of inferior angle of scapula
A: abducts scapula and rotates upwards
RMA: elevates ribs when scapula stabilized BOXERS MUSCLES as horizontal arm movements (punching/pushing)

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

Boxers muscles

A

Serratus Anterior

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

Posterior thoracic muscles (3)

A

Trapezius
Levator Scapulae
Rhomboid major

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

Trapezius origin insertion action RMA

A

O: superior nuchal line of occipital bone, ligamentum nuchae of spines C7-T12
I: clavicle and acromion of spine of scapula
A:
superior fibers:upward rotate scapula
Middle: adduct scapula
Inferior: depress and upward rotate scapula
Sup/inf: rotate scapula upward, stabilized scapula

RMA: superior fibers can extend head

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Rhomboid major action
Elevates and adducts scapula and rotates downward, stabilizes scapula
26
Axial muscles that move humerus (2)
Pectoralis major Latissimus dorsi
27
Pectoralis major origin insertion action
O: clavicle, sternum, costal cartilages of 2-6 sometimes 1-7 I: greater tubercle and lateral lip of intertubercular sulcus of humerus A: Whole: adducts/medially rotates arm Clavicular head: flexes arm Sternocostal head: extends flexed arm to side of trunk
28
Latissimus Dorsi action RMA
Extends, adducts, and medially rotates arm at shoulder joint, draws arm inferiorly posteriorly RMA: elevates VC and torso
29
Scapular muscles that move the humerus (6)
Deltoid Subscapularis Supraspinatus Infraspinatus Teres major Teres minor
30
Deltoid origin insertion action
O: a formula extremity of clavicle, acromion of scapula, spine of scapula I: deltoid tuberosity of humerus A: Lat fiber: adduct arm at shoulder Ant: flex/medially rotate arm at shoulder Post: extend/laterally rotate arm at shoulder
31
Supraspinatus origin insertion action
O: supraspinous fossa of scapula I: greater tubercle of humerus A: assists deltoid in abducting arm at shoulder joint
32
Infraspinatus action
Laterally rotate arm at shoulder joint
33
Infraspinatus action
Laterally rotate arm at shoulder joint
34
Teres major action
Extend arm at shoulder Assist in adduction and medial rotation of arm at shoulder
35
Teres minor action
Laterally rotates and extends arm at shoulder joint
36
Forearm flexors (3)
Biceps brachii Brachialis Brachioradialis
37
Biceps brachii origin insertion action
O: Long head: tubercle above Glenoid cavity of scapula Short head: coracoid process of scapula I: radial tuberosity and bicipital aponeuroses A: flexes forearm at elbow joint, supinates forearm at radioulnar joints, flexes arm at shoulder joint
38
Brachioradialis action
Flexes forearm at EJ, supinates and pronates forearm at radioulnar J to neutral position
39
Brachialis action
Flexes forearm at elbow joint
40
Forearm extensors (2)
Triceps brachii Anconeus
41
Triceps brachii origin insertion action
O: Long head: infraglenoid tubercle Lat head: lat/post surface of humerus Medial head: entire post surface of humerus inf to a groove for the radial nerve I: olecranon of ulna A: extend forearm at EJ and extend arm at shoulder joint
42
Anconeus origin insertion action
O: lat epicondyle of humerus I: olecranon and superior portion of ulna shaft A: extend forearm at EJ
43
Forearm pronators (1)
Pronator teres
44
Pronator Teres action
Pronate forearm at radioulnar joints and weakly flexes forearm at EJ
45
Forearm supinators (1)
Supinator
46
Supinator action
Supinates forearm at radioulnar joints
47
Flexor carpi radialis origin insertion action
O: medial epicondyle of humerus I: metacarpals II and III A: flexes and abducts (radial deviation) at WJ
48
Palmaris longus action
Weakly flexes hand at WJ
49
Flexor carpi ulnaris origin insertion action
O: medial epicondyle of humerus and sup post border of ulna I: pisiform, hamate, and base of metacarpal V A: flexes and adducts hand (ulnar deviation) at WJ
50
Flexor digitorum superficialis origin insertion action
O: medial epicondyle of humerus, coronoid process of ulna, ridge along lat margin or ant surface of radius I: middle phalanx of each finger A: flexes middle phalanx of each finger at proximal IPJ, proximal phalanx MCPJ, and hand at WJ
51
Extensor carpi radialis longus action
Extend and abducts hand at WJ (ulnar deviation)
52
Extensor digitorum origin insertion action
O: lat epicondyle of humerus I: distal and middle phalanges of each finger A: extends distal and middle phalanges of each finger at IPJ, proximal phalanges at MCPJ, hand at WJ
53
Extensor carpi ulnaris origin insertion action
O: lat epicondyle of humerus and post border of ulna I: metacarpal V A: extends and adducts hand at WJ (ulnar deviation)
54
Erector spinae (3) action
Iliocostalis cervices/thoracis/lumborum Together: extend and Marian erect posture of VC Singly: lat flex VC to same Sid wood contraction of respective region
55
Anterior scalene action
Together: (R/L/middle) elevate first ribs during deep inhalation
56
Middle scalene RMA
Flex cervical vertebrae, singly lat flex and slightly rotate cervical vertebrae
57
Posterior scalene action RMA
Together: (r/l/post) elevate second tubes during deep inhalation RMA: flex cervical vertebrae, singly lat flex and slightly rotate cervical vertebrae
58
Iliopsoas psoas major origin insertion action
O: transverse processes and bodies of lumbar V I: with iliacus into lesser trochanter of femur A: psoas major and iliacus muscles acting together flex thigh at hip joint rotate thigh laterally and flex trunk on hip and in sitting up from supine
59
Gluteus Maximus origin insertion action RMA
O: iliac crest sacrum coccyx and aponeuroses of sacrospinalis I: iliotibial tract of fascia lata and sup lat part of linea appears under trochanter of femur A: extend thigh at hip joint and laterally rotates thigh, lock knee into extension rMA: extends torso
60
Gluteus medius action
Abducts thigh at hip joint and medially rotates thigh
61
Adductor longus action RMA
Adducts and flexes thigh at hip joint and rotates thigh RMA: extends thigh
62
Adductor magnus action
Adducts thigh at hip joint and rotates thigh Ant part flexes thigh at hip joint Post part extend higher hip joint
63
Quadriceps femoris (4) insertion action
Rectus femoris, vastus lateralis/medialis/intermdedius I: patella via quadriceps tendon and then tibial tuberosity via patellar ligaments A: all extend leg at knees joint Rectus femoris also flexes thigh at hip joint
64
Sartorius action
Weakly flexes leg at knee joint Weakly flexes/abducts/lat rotates thigh at hip joint
65
Hamstrings (3)
Biceps femoris Semitendinosus Semimembranosus
66
Biceps femoris origin insertion action
O: long head from Scala tuberosity, short head from linea appears of femur I: head of fibula and lateral condyle of tibia A: flexes leg at knee joint and extends thigh at hip joint
67
Semitendinosus action
Flexes leg at knee joint and extends thigh at hip joint
68
Semimembranosus action
Flexes leg at knee joint and extends thigh at hip joint
69
Tibialis anterior origin insertion action
O: lat condyle and body of tibia and interosseous membrane I: metatarsal I and first (medial) coneiform A: dorsiflexes foot at ankle joint and supinates foot at interstate joints
70
Extensor digitorum longus origin insertion action
O: lat condyle of tibia, ant surface of fibula, and interosseous membrane I: middle and distal phalanges of toes II-V A: dorsiflexes foot at ankle joint and extends distal and middle phalanges of each toe at IPJ, and proximal phalanx of each toe at MTPJ
71
Fibularis (peroneus) longus action
Plantar flexes foot at ankle joint and pronates foot and intertarsal joints
72
Gastrocnemius origin insertion action
O: lat and med condyle of femur and capsule of knee I: calcaneus by Achilles tendon A: plantar flexes foot at ankle joint and flexes leg at knee joint
73
Soleus action
Plantar flexes foot at ankle joint
74
Flexor digitorum longus origin insertion action
O: middle third of post surface of tibia I: distal phalanges of toes II-V A: plantar flexes foot at ankle joint flexes distal and middle phalanges of toes II-V at IPJ and proximal phalanx of toes II-V at MCPJ

Biol235 Quiz 3 (3 decks)

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