Lab Practical 3 Flashcards
Muscle of the abdominal wall
External oblique
Action
flexes vertebral column
Muscle of the abdominal wall
Internal oblique
Action
flexes vertebral column
Muscle of the abdominal wall
transverse abdominis
Action
maintaining normal abdominal wall tension
Muscle of the abdominal wall
rectus abdominus
Action/ Origin/ Insertion
flexes the trunk anteriorly
origin: pubic crest
insertion: Xiphoid process
Muscle used in breathing
diaphragm
Action
- respiration
- inhalation
Muscle used in breathing
External intercostalis
Action
- respiration
- inhalation
Muscle used in breathing
Internal intercostalis
Action
- air out
- expiration
Muscle that move the pectoral girdle
Trapezius
Action
stabilizes scapula
Muscle that move the pectoral girdle
pectoralis minor
Action
moves the scapula foward
Muscle that move the pectoral girdle
Levator scapulae
Action/ Origin/ Insertion
Action: elevating scapula
origin: cervical vertebra
insertion: scapula –> medial border
Muscle that move the pectoral girdle
Serratus anterior
Action
rotates scapula
Muscle that move the pectoral girdle
Rhomboid major
Action/ Origin/ Insertion
Action: stabilizes scapula
Origin: throaic vertebra
Insertion: scapula
muscles that move wrist, hand and fingers
flexors group
Action
muscles contracts
muscles that move wrist, hand and fingers
extensors group
Action
extends muscles
Mucles that primarily the arm
Rotator cuff muscles
- supraspinatus
- infraspinatus
- teres minor
- subscapularis
Mucles that primarily the arm
supraspinatus
Action
roating arm medially
Mucles that primarily the arm
infraspinatus
Action
rotating arm lateral
Mucles that primarily the arm
teres minor
Action
rotating arm lateral
Mucles that primarily the arm
subscapularis
Action
roates arm medial
Mucles that primarily the arm
pectoralis major
Action/ Origin/ Insertion
Actions:
- arm adduction
- rotate arm medially
Origin: clavicale and sternum
Insertion: humerus
Mucles that primarily the arm
Latissimus dorsi
Action
- arm adduction
- medial rotation
Mucles that primarily the arm
Deltoid
Action/ Origin/ Insertion
Action: arm adduction
Origin: amicron process of scapula
Insertion: deltoid tuberosity
Muscles that move the forearm
biceps brachii
Action/ Origin/ Insertion
Action:
- flexes forearm
- supinates forearm
Origin: coracoid process of scapula + glenoid cavity
Insertion: radial tiberosity
Muscles that move the forearm
Brachialis
Action
flexes forearm
Muscles that move the forearm
Brachioradialis
Action
flexes forearm
Muscles that move the forearm
triceps brachii
Action
flexes forearm
Muscles of facial expression
Orbicularis oculi
Action
closes eye
Muscles of facial expression
orbicularis oris
Action
closes mouth
Muscles of facial expression
Buccinator
Action
conpresses cheek
Muscles of facial expression
Zygomaticus (major and minor)
Action
raises lateral corners of mouth
Muscles of facial expression
Mentalis
Action
pouting
Muscles of Mastification
Masseter
Action/ Origin/ Insertion
Action: prime movers of closing jaw
Origin: mandible
Insertion: zygomatic arch
Muscles of Mastification
Temporalis
Action/ origin/ insertion
Action: prime movers of closing jaw
Origin: zygomatic arch
Insertion: mandible
Muscle tha moves the head
Sterncloidmasteroid
Action/ origin/ insertion
Action: flexation and lateral rotation of head
Origin: clavicle + sternum
Insertion: masteroid process
Mucles that move the upper leg
hamestring muscle group
- biceps femoris
- semitendinosus
- semimembranosus
Mucles that move the upper leg
biceps femoris
Action
- flexes leg
Mucles that move the upper leg
Semitendinosus
Action
- flexes leg
- rotation of leg
Mucles that move the upper leg
semimembranosus
Action
- flexes leg
- rotation of leg
Mucles that move the upper leg
quadriceps femoris group
- rectus femoris
- vastus intermedius
- vatus lateralis
- vastus medialis
Mucles that move the upper leg
What muscles extends the leg
- rectus femoris
- vastus intermedius
- vatus lateralis
- vastus medialis
Muscles that move ankle, foot and toes
tibialis anterior
Action
flexes foot
Muscles that move ankle, foot and toes
Soleus
Action
plantar flexion
Muscles that move ankle, foot and toes
gastrocnemius
Action/ origin/ insertion
Action: plantar flexion
Origin: medial and lateral heads of femur
Insertion: calcaneus
Muscles that move ankle, foot and toes
Extensor digitorum longus
Action
toe extension
Muscles that move the thigh
gluetus maximus
thigh extension
Muscles that move the thigh
gluetus minimus and medius
adduction of thigh
Muscles that move the thigh
tensor fasciae latae
steadies the leg and trunk on thigh
Muscles that move the thigh
satorius
flexion of thigh
Muscles that move the thigh
adductor longus
adduction of thigh
Muscles that move the thigh
Gracilis
adduction of thigh
