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ANATOMY > Anterior Muscles > Flashcards

Anterior Muscles Flashcards

1
Q

every muscle needs what attached

A

a neuron

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2
Q
A

myofibril

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3
Q
A

fascicle

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4
Q
A

endomycium

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5
Q
A

perimycium

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6
Q
A

epimycium

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7
Q

aponeurosis

A

flat sheet of connective tissue

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8
Q

retinaculum

A

fibrous tissue holding tendon in place

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9
Q

motor neurons

A

transmits signals away from the brain

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10
Q

sensory neurons

A

transmits signals toward the brain

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11
Q
A

epicranium

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12
Q
A

galea apneurotica

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13
Q
A

frontalis / front belly

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14
Q
A

occipitalis
wrinkle forehead/move eyebrows

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15
Q
A

orbicularis oris
opens closes mouth
first sphincter of digestive tract

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16
Q
A

platysma
flexes neck tendons
moves jaw

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17
Q
A

buccinator
blow/sucks

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18
Q

muscles of mastication

A

temporalis muscle
masseter
medial/lateral pterygoid

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19
Q
A

temporalis muscle
elevates and retracts jaw
-origin-superior/inferior temporal bone
-insertion-coronoid process of mandible

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20
Q
A

masseter
elevates and protract jaws
-origin- zygomatic arch
-insertion- lateral surface of coronoid process

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21
Q
A

-sternocleidomastoid
-superior/inferior movement of head
-lateral/medial movement of head
-origin-manubrium
-insertion-mastoid process of temporal bone

22
Q
A

pectoralis minor
protracts and depresses scapula
insertion-coracoid process

23
Q
A

serratus anterior
origin-lateral half of ribs
insertion-crest of scapula
stabilizes and rotates scapula

24
Q
A

-pectoralis major
-prime mover of arm movement and rotation
-origin- clavical and costal cartilege
-insertion-intertubercle groove of humerus

25
Q
A

-deltoid
-anterior, lateral, posterior fibers
-origin- acromial end of clavicle, spine of scapula
-insertion- deltoid tuberosity

26
Q

function of anterior fibers of deltoid

A

flex and medially rotate

27
Q

function of lateral fibers of deltoid

A

prime abductor

28
Q

function of posterior fibers of deltoid

A

extend and laterally rotate

29
Q
A

coracobrachialis
origin-corocoid process

30
Q
A

biceps brachii
origin-
long head-supraglenoid tubercle of scapula
short head-coracoid process of scapula
-flexes elbow

31
Q
A

external abdominal oblique muscles
compress abdomen

32
Q
A

internal abdominal oblique muscles
compress abdomen

33
Q
A

transverse abdominis muscle
compresses abdomen
supports spine

34
Q
A

rectus abdominis
-origin-superior surface of pubis
-insertion-xiphoid process and interior surface of ribs
-compresses abdomen and flexes vertebral column

35
Q
A

linea semilunaris

36
Q
A

linea alba

37
Q
A

inguinal ligament

38
Q
A

diaphram

39
Q
A

-tensor fascia latae
-origin- Iliac crest and lateral surface
of the anterior superior iliac spine.
-Insertion- liotibial track (IT Band).
-Abducts and medially rotates
the femoral region at the
acetabulofemoral joint.

40
Q
A

iliotibial track

41
Q
A

Gracilis
-Adducts and flexes femoral
region, flexes crural region
-attached- adductors
magnus
longus
brevis

42
Q
A

-sartorius
-Flexes acetabulofemoral joint and
laterally rotates femur. Flexes
tibiofemoral joint and medially rotates calf
-origin-anterior superior iliac spine
-insertion-medial side of tibial tuberocity

43
Q
A

-Rectus femoris
-Extends leg at the tibiofemoral joint.
Rectus femoris also flexes the femoral region
-origin-Anterior inferior iliac spine
-insertion- Quadriceps tendon to patella,
then patellar ligament to tibial tuberosity

44
Q
A

-Vastus Lateralis
-Extends leg at tibiofemoral joint.
-orgins- Greater trochanter and linear
aspera of femur
-insertion- Quadriceps tendon to patella,
then patellar ligament to tibial tuberosity

45
Q
A

-vastus medialis
-Extends leg at tibiofemoral joint
-origin-intertrochanteric line and linea
aspera of the femur
-insertion- Quadriceps tendon to patella,
then patellar ligament to tibial tuberosity

46
Q
A

-vastus intermedius
-Extends leg at tibiofemoral joint
-origin-Anterior and lateral surface of femur
-insertion- Quadriceps tendon to patella,
then patellar ligament to tibial tuberosity

47
Q
A

-Tibialis anterior
-Primary dorsiflexor of the foot.
It inverts the talocrural region

48
Q
A

-Peroneus longus
-Plantar flexes and everts
the foot at talocrural region

49
Q
A

iliopsoas

50
Q
A

external intercostals
helps with relaxed breathing

51
Q
A

internal intercostals
helps with forced breathing

52
Q

which is stronger, vertebral or abdominal muscles?

A

vertebral as they always have to resist force of gravity

ANATOMY (14 decks)

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