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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 FiberA
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
AE
Neuromuscular Junction
A
B
C
A: Terminal bouton or motor end plate
B: Nerve axons.
C: Skeletal myofibers.
Tongue Skeletal MuscleA
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.
AB
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
BA