Brainscape's Knowledge GenomeTM

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


See full index

Anatomy and Physiology > Muscle Lab/anatomy > Flashcards

Muscle Lab/anatomy Flashcards

0
Q

Location, action, origins, insertions of:

Orbicularis oculi

A

Surrounds rim of the orbit

Blinking squinting closes eyes

Frontal and maxilla

Tissues of the eyelid

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

Location, action, origins, insertions of:

Frontal is

A

Cutaneous muscle stretching over forehead to upper eyelid

Draws back scalp, raises eyebrows, wrinkles brows

2 bellies: aponeurosis and region anterior to vertex

Skin above nose and ears

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

Location, action, origins, insertions of:

Zygomaticus major

A

From zygomatic arch to corners of mouth

Smiling

Zygomatic bone in front of temporal process

Angle of mouth

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

Location, action, origins, insertions of:

Orbicularis oris

A

Multilayered; mostly surrounding lips

Purses & protrudes lips- kissing and whistling

Indirectly from mandible, maxilla, and other lip muscles

Encircles mouth; inserts into muscle and skin at angles of mouth

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

Location, action, origins, insertions of:

Temporalis

A

Fan-shaped, covers parts of temporal, parietal, and frontal

Closes jaw, elevates/retracts mandible, small region helps protract mandible

Temporal fossa

Coronoid process of mandible via tendon that passes deep to zygomatic arch

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

Location, action, origins, insertions of:

Buccinator

A

Main muscle of cheek; thin/horizontal plane; deep to masseter

Compression of cheeks; holds food between teeth

Molar area of maxilla and mandible

Orbicularis oris

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

Location, action, origins, insertions of:

Masseter

A

Strong muscle covering lateral mandible

Elevates mandible, closes jaw

Zygomatic bone

Mandible

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

Location, action, origins, insertions of:

Occipitalis

A

Part of occipitofrontalis muscle

Moves scalp

Occipital and temporal bones

Aponeurosis

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

Location, action, origins, insertions of:

Sternocleidomastoid

A

Neck

Flexes and rotates head; flexes head towards shoulders

Manubrium and clavicle

Temporal bone

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

Location, action, origins, insertions of:

Scaleni muscles

A

Four of these: scalene, scalene anterior, scalene middle, scalene posterior

Flexion & rotation of cervical vertebrae

Transverse processes of various cervical vertebrae

Various ribs and vertebrae

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

Location, action, origins, insertions of:

Trapezius

A

Flat, triangular; mud-upper back

Stabilizes, raises, retracts, and rotates scapula

Occipital bone, spinous process of C-7 & thoracic vertebrae

Continuous insertion along scapula; lateral third of clavicle

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

Location, action, origins, insertions of:

Latissimus dorsi

A

Broadest muscle of back; dorsi-lateral to trunk, posterior to arm, covered by trapezius superiorly, contributes to posterior wall of axilla

Addicts, extends, & rotates humerus medially bringing arm down in power stroke

Lower thoracic; indirectly via fascia to lumbar and sacral vertebrae

Humerus

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

Location, action, origins, insertions of:

Gluteus Maximus

A

Forms bulk of buttock mass

Major extensor of thigh

Dorsal ilium, sacrum, and coccyx

Femur

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

Location, action, origins, insertions of

Deltoid

A

Thick rounded muscle forming shoulder mass

Arm flexor, rotates arm medially, addicts arm, when scapula fixed pulls rib cage upwards, assists in throwing pushing forced inspiration

Surrounds insertion of trapezius and lateral third of clavicle

Humerus

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

Location, action, origins, insertions of:

Serratus anterior

A

Adjacent to thoracic wall

Abducts (protracts) scapula, rotates scapula upwards while abducting arm, holds scapula to chest wall

Anterior surfaces of first 8 ribs

Scapula: anterior surface and medial border

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

Location, action, origins, insertions of:

Pectoralis major

A

Chest; upper/axillary (anterior)

Arm flexion, medial rotation, forced inspiration, rib cage elevation

Clavicle and sternum; cartilages of ribs 1-6

Humerus

16
Q

Location, action, origins, insertions of:

External oblique

A

Anterior & lateral abdominal wall

Flexes vertebral column

Lower 8 ribs

Pubic crest and iliac crest

17
Q

Location, action, origins, insertions of:

Rectus abdominis

A

Extends from pubis to rib cage; r sheathed by aponeuroses of adjacent lateral muscles

Flex and rotate lumbar region of vertebral column; increase intra-abdominal pressure, use during sit ups

Pubis

Xiphoid process; costal cartilages of ribs 5-7

18
Q

Location, action, origins, insertions of:

Triceps brachii

A

Posterior compartment of arm

Extends arm at shoulder extends forearm at elbow

Three-headed at: scapula; humerus

By a common tendon to the ulna

19
Q

Location, action, origins, insertions of:

Biceps brachii

A

Arm

Flexes elbow joint; rotates hand laterally

Scapula: short- coracoid process, long- glenoid cavity

Radius: radial tuberosity

20
Q

Location, action, origins, insertions of:

Brachioradialis

A

Lateral region on lower arm

Flexes forearm and elbow

Humerus: lateral supracondyle ridge

Radius

21
Q

Location, action, origins, insertions of:

Sartorious

A

Strap like; longest muscle in humans; runs obliquely across anterior surface of thigh to knee

Flexes thigh & knee, abducts, laterally rotates thigh, cross-legged position

Anterior superior iliac spine

Medial aspects of knee, medial aspects of proximal tibia

22
Q

Location, action, origins, insertions of:

Rectus femoris

A

Quadriceps group- thigh, anterior aspect

Flexes thigh at hip, extends knee

Acetabulum; anterior iliac spine

Patellar and tibial tuberosity via patellar ligament

23
Q

Location, action, origins, insertions of:

Vastus medialis

A

Quadriceps group; thigh- medial region

Extend the knee

Linda aspera

Same as rectus femoris: patellar and tibial tuberosity via patellar ligament

24
Q

Location, action, origins, insertions of:

Vastus lateralis

A

Quadriceps group; thigh- lateral region

Extends and stabilizes knee

Femur, lines aspera

Patellar and tibial tuberosity via patellar ligament

25
Q

Location, action, origins, insertions of:

Pectineal

A

Short/flat overlies adductor brevis

Adducts, flexes and medially rotates thigh

Pubis and superior ramus

Femur (posterior), runs inferiorly from lesser trochanter to linea aspera

26
Q

Location, action, origins, insertions of:

Gracilis

A

Long/thin in thigh (medial)

Addicts thigh; flexes and medially rotates leg

Pubis

Tibia (medial), inferior to medial condyle

27
Q

Location, action, origins, insertions of:

Adductor longus

A

Medial aspect of thigh

Flexes thigh; abducts thigh, medially rotates thigh

Pubis

Linea aspera

28
Q

Location, action, origins, insertions of:

Biceps femoris

A

Most lateral of hamstrings group

Extend thighs, flexes knee, laterally rotates leg especially when knee is flexed

Long head: ischial tuberosity
Short head: distal femur and linea aspera

Common tendon inserts into fibula (head) and tibia (lateral condyle)

29
Q

Location, action, origins, insertions of:

Gastrocnemius

A

Posterior leg (calf), superficial pair of bellies

Flexes foot when knee extends, since crosses at knee joint, can flex the knee when foot is dorsiflexed

By 2 head from lateral and medial condyles of femur

Posterior calcaneous via calcaneal tendon

30
Q

Location, action, origins, insertions of:

Soleus

A

Flat, broad muscle of calf just below gastrocnemius

Plantar flexes foot

Fibula and tibia; popliteal fascia

Calcaneous by Achilles’ tendon

31
Q

Location, action, origins, insertions of:

Extensor digitorum longus

A

Anterolateral surface of leg

Toe extension; dorsiflexes foot

Tibia and fibula

Middle/distal phalanges toes 2-5

32
Q

Location, action, origins, insertions of:

Tibialis anterior

A

Anterior leg

Dorsiflexion and foot inversion

Tibia

First metatarsal bone

33
Q

Location, action, origins, insertions of:

Tensor fascia lata

A

Anterolateral aspect of thigh

Flexes, rotates thigh medially

Anterior region of iliac crest and anterior superior iliac spine

Iliotibial band of fascia lata

Anatomy and Physiology (16 decks)

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