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muscyo
places, origins and insertions of muscles in the body
41
Anatomy
Graduate
09/19/2011

Additional Anatomy Flashcards

 


 

Cards

Term

Upper Arm

 

Biceps Brachii

Definition

Origin: short-coracoid process of scapula

long - supraglenoid tubercle of scapula

 

Insertion: radial tuberosity

Term

Upper Arm

 

Coracobrachialis

Definition

Circumducts forearm

 

Origin: short head, coracoid process of scapula

 

Insertion: medial surface of humerus

Term

Upper Arm

 

Brachialis

Definition

Inside of elbow

 

Origin: distal anterior humerus

 

Insertion: Ulna

Term

Upper Arm

 

Triceps Brachii

Definition

Extends forearm

 

Origin: infraglenoid tubercle of scapula

 

Insertion: Olecranon process of ulna

Term

Forearm

 

Pronator Teres

Definition

Pulls radius over, inside of elbow

 

Origin: humeral head - media epicodyle

ulnar head - coranoid process

 

Insertion: lateral surface of radius

Term

Forearm Muscles

 

Flexor Digitorum Superficialis

Definition

Flexes finger muscles, makes fist

 

Origin: humerulnerhead medial epicodyle

 

Insertion: middle phalanx of each digit other than thumb

Term

Upper Arm

 

Brachioradialis

Definition

Arm to radius

 

Origin: lateral supercondylar ridge of humerus

 

Insertion: ends in flat tendon on radial side of tendon

Term

Forearm

 

Extensor Digitorum

Definition

Extends digits

 

Origin: humerus lateral epicodyle

 

Insertion: extensor expansions of each digit other than thumb

Term

Upper Arm

 

Deltoid

Definition

Shoulder Muscle

 

Origin: lateral 3rd of clavicle, spine of scapula

 

Insertion: deltoid suberosity of humerus

 

Term

Upper Arm

 

superspinatus

infraspinatus

Definition

Supra above infra below

 

 Origin: scapula, supra infra fossa

 

Insertion: humerus

Term

Sternum

 

Rectus Abdominus

Definition

Stomach Muscle

 

Origin: Pubis

 

Insertion: cartilage of 5th, 6th, and 7th ribs and xiphoid process

Term

Sternum

 

Serratus Anterior

Definition

Ribs

 

Origin: Outer surface of first 8 to 9 ribs

 

Insertion: Ventral Aspect of vetebral border of scapula

Term

Sternum

 

Pectoralis Major

Definition

Big Chest Muscle

 

Origin: clavicle, sternum, external oblique

 

Insertion: Intertubercular groove of humerus

Term

Sternum

 

External Abdominal Oblique

Definition

Side of abdomen/ribs

 

Origin: external surface inferior borders of lower 8 ribs

 

Insertion: Iliac crest, linea alba

Term

Back

 

Erector Spinae

Definition

Keeps your back erect

 

Origin: iliac crest, posterior sacrum, serial and lumbar spinous processes

 

Insertion: lower ribs, cervical transverse spinal processes

 

Term

Back

 

Latissimus Dorsi

 

Definition

Large muscles on lower sides of back

 

Origin: thoracolumbar fascia

T1-T6 vertebrae

 

Insertion: intertubercular groove of the humerus

Term

Back

 

Levator Scapulae

 

 

Definition

Lifts scapula

 

Origin: C4 transverse processes

 

Insertion: medial border of scapula

Term

Back

 

Splenius Capitus/Cervicus

 

 

Definition

Deeper back to neck muscle

 

Origin: c6/c7 spinous processes

 

Insertion: capitus:mastoid process

Term

Back

 

Seminspinalus capitus

Definition

balances head

 

origin: t1-t7/c7 spinous processes

 

insertion: nuchal line on occipital bone

 

 

Term

Back

 

Trapezius

Definition

moves shoulders up and down

 

origin: occipital nuchal line, c7 and t1-t12 spinous processes

 

insertion: clavicle, acromion, scapular spine

Term

Neck

 

Sternohyodeus

 

 

Definition

Adams apple

 

Origin: sternum

 

Insertion: hyoid

Term

Neck

 

Sternocleido-Mastoideus

Definition

Big muscle on side of neck

 

Origin: manubrium of sternum

 

Insertion: Mastoid process, temporal bone

 

Term

Jaw

 

Temporalis

Definition

Big muscle on side of head that moves for mastification of jaw

 

origin: temporal fossa

 

insertion: anterior border of ramus and mandible

Term

Jaw

 

Masseter

Definition

big muscle on cheek for jaw mastification

 

origin: zygomatic arch

 

insertion: lateral mandible and coranoid process

Term

Thigh

 

Sartorius

Definition

rotates leg outward

 

origin: anterior superior iliac spine

 

insertion: superior medial surface of tibial shafts

Term

Leg

 

Rectus femoris

Definition

extends lower legs

 

origin: anterior inferior iliac spine

 

insertion: quadriceps tendon, patellar ligament into tibial tuberosity

Term

Leg

 

Biceps Femoris

Definition

moves leg backwards of forwards

 

origin: ischial tuberosity and linea aspera

 

insertion: lateral side of head of fibula

 

Term

Leg

 

Femur and Greater Trochanter

 

 

Definition
Upper leg, lots of muscles attach in the trochanter for abduction
Term

Lower Leg

 

Tibialis Anterior

Definition

flexion of the foot

 

origin: lateral condyle of tibia

 

insertion: medial cuneiform tarsal, base of first metatarsal

Term

Lower Leg

 

Gastrocnemius

Definition

extends feet, calf muscles

 

origin: medial and lateral condyle of femur

 

insertion: both heads of soleus form calcaneal tendon

 

 

Term

Lower Leg

 

Soleus

Definition

smaller calf muscles

 

origin: posterior surface of head of fibula

 

insertion: calcaneal tendon, posterior surface of calcaneus

Term
Myofibril
Definition
smallest functioning unit of the muscle, consist of myofilaments that cause muscle contraction
Term
Origin and Insertion
Definition

origin: fixed end or attachment of muscle

 

insertion: attachment muscle to bone that it moves

Term
Type 1 (slow twitch)
Definition

high vascularization (high blood supply), high endurance, slow contraction

 

ex: long distance runner

 

Term
Type 2 (fast twitch)
Definition

low vascularization, low endurance, contract quickly

 

ex. sprinters

Term
Myofilaments
Definition

Muscle tissue and molecular level

 

Thin filament: acting, tropomin, tropomyosin

 

Thick Filament: myosin

Term

Muscle Microanatomy

 

Z-bands

Definition

Anchor for the thin filament, anchor for actin

 

 

Term

Muscle Microanatomy

 

I-Bands

Definition
For Actin only
Term

Muscle Microanatomy

 

A-Bands

Definition

Anisitropic bands

 

where actin and myosin interact

Term

Muscle Microanatomy

 

H-Bands

Definition
Hensen bands, myosin only, shrink when muscle contracts
Term

Striated Muscle

 

Definition
skeletal, voluntary muscle
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