A&P 12-13 Lab

What is pictured here?

Myofibril - rod like elements (organelles); give muscle striped appearance

What is A black arrow pointing at

Thin (actin)​

filament​

What is B black arrow pointing at

Z-disc

What is C black arrow pointing at

H zone

What is D black arrow pointing at

Z disc

What is E black arrow pointing at

Thick ​(myosin)​ filament​

What is F black arrow pointing at

I band

What is G black arrow pointing at

A band

What is H black arrow pointing at

I band

What is I black arrow pointing at

M line

What is I black arrow pointing at

Sarcomere​

What is A black arrow pointing at

Triad

What is B black arrow pointing at

T tubule

What is C black arrow pointing at

Terminal​ cisterns of​ the SR (2) ​

What is D black arrow pointing at

Tubules of​ the SR​

What is E black arrow pointing at

Myofibrils​

What is F black arrow pointing at

Mitochondria​

What is A covering

Epimysium​

What is B covering

Perimysium​ wrapping a fascicle​

What is C covering

Endomysium (between individual​ muscle fibers)​

What is D covering

Perimysium ​​

What is E covering

Muscle Fiber

What is the Fibrous connective tissue surrounding fascicles​

Perimysium​

What is A covering

Epimysium​

What is B covering

Perimysium​

What is C covering

Endomysium​

What is D covering

Muscle fiber​ in middle of ​ a fascicle​

Prime mover (agonist)​

Major responsibility for producing specific movement​

Antagonist​

Opposes or reverses a particular movement​

Synergist helps prime movers

Adds extra force to the same movement​, reduces undesirable or unnecessary movement​

​​Fixator

Synergist that immobilizes bone or muscle's origin​,gives prime mover stable base on which to act​

What is the facial muscle pointed to?

frontal belly

What is the facial muscle pointed to?

Orbicularis oculi​

What is the facial muscle pointed to?

Zygomaticus​

What is the facial muscle pointed to?

Orbicularis oris​

What is the head muscle pointed to?

Temporalis​

What is the head muscle pointed to?

Masseter​

What is the neck muscle pointed to?

Platysma

What is the neck muscle pointed to?

Sternohyoid

What is the neck muscle pointed to?

Sternocleidomastoid​

What is the shoulder muscle pointed to?

Trapezius

What is the shoulder muscle pointed to?

Deltoid

What is the thorax muscle pointed to?

Pectoralis minor​

What is the thorax muscle pointed to?

Pectoralis major

What is the thorax muscle pointed to?

Intercostals​

What is the abdomen muscle pointed to?

Rectus abdominis​

What is the abdomen muscle pointed to?

External oblique

What is the abdomen muscle pointed to?

Internal oblique

What is the abdomen muscle pointed to?

Transversus abdominis​

What is the thigh muscle pointed to?

Tensor fasciae latae​

What is the thigh muscle pointed to?

Sartorius

What is the thigh muscle pointed to?

Adductor longus

What is the thigh muscle pointed to?

Gracilis

What is the thigh muscle pointed to?

Rectus femoris

What is the thigh muscle pointed to?

Vastus lateralis​

What is the thigh muscle pointed to?

Vastus medialis​

What is the leg muscle pointed to?

Gastrocnemius​

What is the leg muscle pointed to?

Soleus​

What is the leg muscle pointed to?

Fibularis longus​

What is the leg muscle pointed to?

Extensor digitorum​ longus​

What is the leg muscle pointed to?

Tibialis anterior​

What is the pelvis muscle pointed to?

Iliopsoas​

What is the pelvis muscle pointed to?

Pectineus​

What is the forearm muscle pointed to?

Brachioradialis

What is the forearm muscle pointed to?

Flexor carpi radialis

What is the forearm muscle pointed to?

Palmaris longus

What is the arm muscle pointed to?

Triceps brachii

What is the arm muscle pointed to?

Biceps brachii

What is the arm muscle pointed to?

Brachialis​

What is the neck muscle pointed to?

Occipital belly

What is the neck muscle pointed to?

Sternocleidomastoid​

What is the neck muscle pointed to?

Trapezius

What is the arm muscle pointed to?

Triceps brachii​

What is the arm muscle pointed to?

Brachialis​

What is the forearm muscle pointed to?

​Brachioradialis​

What is the forearm muscle pointed to?

Extensor carpi radialis​ longus​

What is the forearm muscle pointed to?

Flexor carpi ulnaris

What is the forearm muscle pointed to?

Extensor digitorum

What is the forearm muscle pointed to?

Extensor carpi ulnaris

What is the shoulder muscle pointed to?

Deltoid

What is the shoulder muscle pointed to?

Infraspinatus

What is the shoulder muscle pointed to?

Teres major​

What is the shoulder muscle pointed to?

Rhomboid major​

What is the shoulder muscle pointed to?

Latissimus dorsi​

What is the hip muscle pointed to?

Gluteus medius​

What is the hip muscle pointed to?

Gluteus maximus​

What is the thigh muscle pointed to?

Iliotibial tract​

What is the thigh muscle pointed to?

Adductor magnus​

Hamstrings include

Bicep femoris, semitendinosus, semimembranosus

What is the thigh muscle pointed to?

Biceps femoris​

What is the thigh muscle pointed to?

Semitendinosus​

What is the thigh muscle pointed to?

Semimembranosus​

What is the leg muscle pointed to?

Gastrocnemius​

What is the leg muscle pointed to?

Soleus​

What is the leg muscle pointed to?

Fibularis longus​

What is the leg muscle pointed to?

Calcaneal​ (Achilles) tendon​

What is 1 covering and what is its action

Orbicularis oculi, closes eyes

What is 2 covering and what is its action

Levator labii superioris, open lips

What is 3 covering and what is its action

Zygomaticus minor & major, raises lateral corners of mouth upward

What is 4 covering and what is its action

Buccinator, Compress cheek