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A and P 1 - Lab > Muscle - OIAs > Flashcards

Muscle - OIAs Flashcards

1
Q

Attachment to immovable bone

A

Origin

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2
Q

Attachment to moveable bone
Contraction causes it to move towards origin

A

Insertion

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3
Q

Movement of muscle

A

Action

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4
Q

O - Galea aponeurotica (tendon that separates the two muscles)
I - Subcutaneous tissue of eyebrows
A - Raises eyebrows, forehead wrinkles

A

Fontalis (Frontal Belly)

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5
Q

O - Nuchal line of occipital and temporal bones
I - Galea aponeurotica (tendon that separates the two muscles)
A - Fixes aponeurosis and pulls scalp posteriorly

A

Occipitalis (Occipital Belly)

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6
Q

O - Medial bones of orbit
I - Into eyelid tissue
A - Closes eyelids, produces blinking

A

Orbicularis oculi

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7
Q

O - Corners of mouth
I - Dermis of lips
A - Causes lips to protrude, pucker, and close (whistle)
Not attached to bone

A

Orbicularis oris

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8
Q

O - Zygomatic bone
I - Corner of mouth
A - Pull corners of mouth laterally in smiling and laughing

A

Zygomaticus

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9
Q

O - Upper chest specifically in the fascia over pectoral muscles and deltoid
I - Lower part of mandible, skin of mouth at corners
A - Depresses mandible, tenses skin of neck as when shaving (taut), opens and widens mouth
Sheet-like

A

Platysma

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10
Q

O - Temporal fossa
I - Coronoid process of mandible
A - Raises mandible into maxillae for biting and chewing, closes jaw

A

Temporalis

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11
Q

O - Zygomatic arch, zygomatic bone
I - Angle of ramus and of mandible
A - Prime mover of jaw closure, elevates mandible for biting, pulls mandible a little to side

A

Masseter

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12
Q

O - Maxilla and mandible
I - Orbicularis oris
A - Compresses cheek, pushes food between teeth, prevents food from getting into space between teeth and cheek, also keeps saliva in the right place

A

Buccinator

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13
Q

O - Sternum and clavicle
I - Mastoid process of temporal bone
A - When contracts, causes flexion and rotation of head; YES movement

A

Sternocleidomastoid

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14
Q

Made of three columns:
1. Iliocostalis - lateral
2. Longissimus - middle
3. Spinalis - medial
A - Helps to pull you up when bent over, prime mover of spinal extension

A

Erector spinae

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15
Q

O - Iliac crest of hip bone
I - Upper lumbar vertebrae and T12
A - Causes lateral flexion of vertebral column when acting separately, when acting together lumbar spine is extended

A

Quadratus lumborum

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16
Q

O - Sternum, lumbar vertebrae, inferior internal surface of rib cage
I - Central tendon (inserts in a lot of places)
A - Inspiration of prime mover (Domed when relaxed, flat when contracts)

A

Diaphragm

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17
Q

Short muscles that run from rib to rib
External
O - Inferior border of rib above
I - Superior border of rib below
A - Action that causes upwards and outwards movement of rib cage, helps with breathing
Internal
O - Superior border of rib below
I - Inferior border of rib above
A - Action depresses rib cage, involved in forced expiration

A

Intercostals

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18
Q

O - Pubic bone
I - Xiphoid process of sternum, costal cartilage of ribs
A - Flexes and rotates lumbar vertebral column
Allows you to touch your toes

A

Rectus abdominis

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19
Q

O - Lower 8 ribs
I - Linea alba
A - Flex vertebral column, rotation of trunk when contracted individually

A

External oblique

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20
Q

O - Iliac crest of hip bone
I - Linea alba
A - Flex vertebral column, rotates trunk when one side contracts

A

Internal oblique

21
Q

O - Iliac crest of hip bone
I - Linea alba
A - Compresses abdominal contents
Lies underneath oblique layer transversally

A

Transverse abdominis

22
Q

Gives us 6 pack ab definition

A

Tendinous intersections

23
Q

O - Upper ribs
I - Scapula
A - Raises scapula up and helps hips to abduct away from midline, important in arm pushing and punching

A

Serratus anterior

24
Q

O - Occipital bone, thoracic spines (C7-T-12)
I - Clavicle and scapula
A - Stabilizes, elevates, retracts and rotates scapula

A

Trapezius

25
Q

O - Cervical vertebrae 1-4
I - Scapula
A - Elevates scapula
On back and side of neck, deep to trapezius , strap-like muscle

A

Levator scapulae

26
Q

O - Thoracic spines 2-5
I - Scapula
A - Stabilizes scapula
Under trapezius

A

Rhomboid major

27
Q

O - Anterior surface of ribs
I - Coracoid process of scapula
A - Draw scapula forward and downward

A

Pectoralis minor

28
Q

O - Sternal end of clavicle and sternum
I - Humerus
A - Adducts and medially rotates arm, flexion of arm at shoulder

A

Pectoralis major

29
Q

O - Lower vertebral spine, iliac crest of hip bone
I - Humerus
A - Prime mover of arm extension, powerful arm adductor, medial rotation of arm at shoulder
Helps with hammering and swimming

A

Latissimus dorsi

30
Q

O - Clavicle, spine and acromion of scapula
I - Deltoid tuberosity of humerus
A - Prime mover of arm abduction (reaching out to grab something)

A

Deltoid

31
Q

O - Lower lateral border and inferior angle of scapula
I - Anterior humerus
A - Adducts, medially rotates, and extends the arm at the shoulder

A

Teres major

32
Q

O - Coracoid process of scapula
I - Humerus shaft
A - Adducts arm

A

Coracobrachialis

33
Q

O - Short head = Coracoid process of scapula; Long head = Glenoid cavity of scapula
I - Radial tuberosity of radius
A - Supinates forearm, elbow flexion

A

Biceps brachii

34
Q

O - Anterior humerus
I - Coronoid process of ulna
A - Flexes elbow
Deep to biceps brachii

A

Brachialis

35
Q

O - Long head = Scapula; Lateral head = Humerus; Medial head = Humerus
I - Olecranon process of ulna
A - Extends arm

A

Triceps brachii

36
Q

O - Distal end of humerus
I - Styloid process of radius
A - Elbow flexion

A

Brachioradialis

37
Q

Upper part of forearm

A

Wrist extensors

38
Q

Lower part of forearm

A

Wrist flexors

39
Q

O - Ilium (upper part of hip bone) and sacrum, coccyx
I - Femur
A - Extends thigh, abduction of thigh
Major butt muscle, important for climbing stairs

A

Gluteus maximus

40
Q

O - Ilium
I - Greater trochanter of femur
A - Abduct and medial rotation of thigh

A

Gluteus medius/minimus

41
Q

Form middle thigh, used to press thighs together
O - Pubis
I - Femur
A - Adduct femur

A

Adductor longus, magnus, brevis

42
Q

Long, thin medial thigh muscle
O - Pubis of hip bone
I - Tibia
A - Adducts thigh, flexes and medially rotates leg

A

Gracilis

43
Q

Rectus femoris
Vastus lateralis
Vastus medialis
Vastus intermedius
I - Quad tendon
A - Extends, kicks knee

A

Quadriceps

44
Q

O - Superior iliac spine
I - Medial part of tibia
A - Flexes knee, main muscle when cross legs and try to sit down

A

Sartorius

45
Q

O - Ischium of hip bone
I - Biceps femoris = Fibula; Semimembranosus = Tibia; Semitendinosus = Tibia
A - Action of all three hamstring muscles is to extend thigh and flex knee

A

Hamstrings

46
Q

O - Gastrocnemius = Femur; Soleus = Tibia and fibula
I - Calcaneal tendon
A - Pointing of toes (plantar flexion = down)

A

Triceps surae

47
Q

O - Tibia
I - Foot bones
A - Dorsiflexion, flexes foot up

A

Tibialis anterior

48
Q

O - Vertebra
I - Lesser trochanter of femur
A - Flexes hip, medial rotation of femur, helps to “bow”

A

Psoas major

49
Q

O - Iliac crest of hip bone
I - Iliotibial tract (thickened lateral portion of the fascia lata)
A - Flexes and abducts thigh

A

Tensor fasciae latae

A and P 1 - Lab (4 decks)

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