Practical 4 - Anatomy & Histology of Skeletal Muscle

Epicranius

Frontalis

Occipitalis

Temporalis

Masseter

Orbicularis oculi

Orbicularis oris

Sternocleidomastoid

Pectoralis major

Pectoralis minor

Serratus anterior

External intercostals

Internal intercostals

External oblique

Internal oblique

underneath external oblique

Transverse abdominis

(ridges going horizontal) underneath internal oblique

Rectus abdominis

abs

Trapezius

Latissimus dorsi

Levator scapulae

below the trapezius

Levator scapulae

Rhomboid major

Rhomboid minor

Supraspinatus

Infraspinatus

Subscapularis

under shoulder blade

Teres major

Teres major

Teres minor

Teres minor

Deltoid

Biceps brachii

Triceps brachii

Brachialis

Brachioradialis

Flexor carpi radialis

Palmaris longus

Flexor carpi ulnaris

Flexor carpi ulnaris

Flexor digitorum superficialis

Extensor carpi radialis longus

Extensor digitorum

Extensor digiti minimi

Extensor carpi ulnaris

Supinator

Supinator

Pronator teres

Pronator teres

Sartorius

Gracilis

Rectus femorus

Vastus lateralis

Vastus medialis

Vastus intermedius

Adductor longus

Gluteus Maximus

Tensor fasciae latae

Biceps femoris

Semimembranosus

Semitendinosus

Tibialis anterior

Fibularis longus

Soleus

Flexor digitorum longus

Pectineus

Piriformis

Extensor Digitorum longus

Gastrocnemius

Sternohyoid

Scalenes

Mylohyoid

Thyrohyoid

Thyrohyoid

Splenius Capitus

Zygomaticus

Depressor Anguli Oris

Depressor Labii inferioris

Risorius

Mentalis

Buccinator

Sarcolemma

Myofibril

Sarcoplasm

Mitochondrion

Sarcoplasmic Recticulum

Nucleus

Striation

T-Tubule

Terminal Cisternae

Endomysium

Synergist

Fixator

Angatonist

Synergists

a muscle that assists the primary mover (agonist) in performing a specific joint action, working with other muscles to create a coordinated and smooth movement

Fixator

a muscle that stabilizes a body part to allow another muscle to work effectively.

Antagonist

a muscle that opposes the action of another muscle, called the agonist

Agonist

when one muscle group contracts to create a movement, while another group relaxes to allow it