Muscle

SKELETAL MUSCLE

Transverse Cut A B C D A: Epimysium B: Perimysium C: Endomysium D: Fascicle

Transverse Cut A B A: Perimysium B: Endomysium

A B C

A B

Longitudinal Cut A Skeletal muscle regularly arranged A: Endomysium

A B

Intrafusal Fiber A B C D A: Skeletal muscle fibers. B: Intrafusal fibers C: Central non-striated area where nuclei are concentrated. D: Capsule

Sarcomere A: A-band H: H-band M: M-line Z: Z-lines

B C D A E

Neuromuscular Junction A B C A: Terminal bouton or motor end plate B: Nerve axons. C: Skeletal myofibers.

Tongue Skeletal Muscle A B C D Skeletal Muscle Irregularly Arranged A: Circumvallate Papillae. B: Von Ebner’s Gland. C: Taste Bud D: Irregularly arranged skeletal muscle.

CARDIAC MUSCLE

Cardiac Muscle A A B A: Bifurcations of the cardiac muscle B: Intercalated discs N: Centrally located nuclei.

A

A B C

SMOOTH MUSCLE

Longitudinal Cut A Smooth Muscle Regularly Arranged A: Smooth muscle fiber.

Transverse Cut A Smooth Muscle Regularly Arranged A: Smooth muscle myocyte.

CARDIOVASCULAR SMOOTH MUSCLE

Vascular Smooth Muscle A B A C D B C A: Tunica intima B: Tunica media C: Tunica adventitia D: Skeletal muscle

DIGESTIVE SMOOTH MUSCLE

Intestinal Smooth Muscle A B C D A: Muscularis externa B: Inner circular layer of the muscularis externa. C: Outer longitudinal layer of the muscularis externa. D: Mucosa.

A B C

Stomach Smooth Muscle A A: Muscularis externa O: Inner oblique C: Middle circular L: Outer longitudinal GP: Gastric gland. M: Mucosa.

A B C

REPRODUCTIVE SMOOTH MUSCLE

Uterine Smooth Muscle A B C A: Endometrium B: Uterine glands C: Myometrium

B A

Vaginal Smooth Muscle A: The outer adventitial layer. SM: Smooth muscle irregularly arranged. LP: Lamina propria. E: Stratified squamous epithelium.

A B C

URINARY TRACT SMOOTH MUSCLE

Ureter Smooth Muscle B C A A: Transitional epithelium or uroepithelium. B: Inner longitudinal layer C: Outer circular layer

C B A