Paraurethral Gland Penis

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Figure 1-91

Two Glomeruli and Glomerular Capsules

"Lacy" edges of glomerulus on left shows characteristics of pregnancy-induced hypertension (PIH), here induced experimentally in a pregnant rat. (X50)

Space in glomerular capsules Glomeruli

Figure 1-91

Two Glomeruli and Glomerular Capsules

"Lacy" edges of glomerulus on left shows characteristics of pregnancy-induced hypertension (PIH), here induced experimentally in a pregnant rat. (X50)

Space in glomerular capsules Glomeruli

Cross Section Glomerulus

Figure 1-92

Distal Convoluted Tubules Lined with Cuboidal Epithelium Cross section from rat. (X400)

Cuboidal cell

Figure 1-92

Distal Convoluted Tubules Lined with Cuboidal Epithelium Cross section from rat. (X400)

Cuboidal cell

Paraurethral Glands

Figure 1-93

Ureter Star-shaped lumen is lined with transitional epithelium that varies in thickness to change shape as lumen stretches. Delicate lamina propria separates epithelium from alternating layers of circular and longitudinal smooth muscle. (X25)

Transitional epithelium Lumen

Smooth muscle and adventitial connective tissue

Figure 1-93

Ureter Star-shaped lumen is lined with transitional epithelium that varies in thickness to change shape as lumen stretches. Delicate lamina propria separates epithelium from alternating layers of circular and longitudinal smooth muscle. (X25)

Transitional epithelium Lumen

Smooth muscle and adventitial connective tissue

Longitudinal And Circular Smooth Muscles

Histology

Basement Membrane Urinary Bladder

Figure 1-94

Urinary Bladder Umbrella cells of transitional epithelium stretch and flatten as bladder fills. Basement membrane separates epithelium from underlying connective tissue containing blood vessels. Monkey. (X100)

Umbrella cells Lumen of bladder Basement membrane

Figure 1-94

Urinary Bladder Umbrella cells of transitional epithelium stretch and flatten as bladder fills. Basement membrane separates epithelium from underlying connective tissue containing blood vessels. Monkey. (X100)

Umbrella cells Lumen of bladder Basement membrane

Lumen Urethra Muscular Layer

Figure 1-95

Urethra (within Penis) Lumen is lined with transitional epithelium and is embedded in corpus spongiosum of the penis. Paraurethral glands located above the lumen in the figure secrete mucus into the urethra. A smooth muscle layer (tunica muscularis) surrounds the urethral structures. (X10)

Paraurethral glands Corpus spongiosum Tunica muscularis Lumen

Transitional epithelium

Figure 1-95

Urethra (within Penis) Lumen is lined with transitional epithelium and is embedded in corpus spongiosum of the penis. Paraurethral glands located above the lumen in the figure secrete mucus into the urethra. A smooth muscle layer (tunica muscularis) surrounds the urethral structures. (X10)

Paraurethral glands Corpus spongiosum Tunica muscularis Lumen

Transitional epithelium

Paraurethral Glands Female

Figure 1-96

Seminiferous Tubules of Testis Lined with Sertoli Cells and Germinativum in Various

Stages of Development Tunica propria surrounds each tubule. Interstitial spaces contain blood vessels and clumps of interstitial (Leydig) cells that secrete testosterone. (X 50)

Spermatozoa Tunica propria Basement membrane

Interstitial cells Spermatocytes

Sertoli cells

Figure 1-96

Seminiferous Tubules of Testis Lined with Sertoli Cells and Germinativum in Various

Stages of Development Tunica propria surrounds each tubule. Interstitial spaces contain blood vessels and clumps of interstitial (Leydig) cells that secrete testosterone. (X 50)

Spermatozoa Tunica propria Basement membrane

Interstitial cells Spermatocytes

Sertoli cells

CHAPTER 1

Figure 1-97

Spermatozoa Head contains numerous enzymes and nucleus with DNA. Thick midpiece just behind head is packed with mitochondria. (X250)

Head of sperm Midpiece Tail

Figure 1-97

Spermatozoa Head contains numerous enzymes and nucleus with DNA. Thick midpiece just behind head is packed with mitochondria. (X250)

Head of sperm Midpiece Tail

Clumps Sperm

Figure 1-98

Epididymis Tall, pseudostratified columnar epithelium with microvilli surrounds a lumen packed with clumps of spermatozoa. Narrow band of smooth muscle cells encircles each tubule.

Pseudostratified columnar epithelium Spermatozoa in lumen Smooth muscle

Figure 1-98

Epididymis Tall, pseudostratified columnar epithelium with microvilli surrounds a lumen packed with clumps of spermatozoa. Narrow band of smooth muscle cells encircles each tubule.

Pseudostratified columnar epithelium Spermatozoa in lumen Smooth muscle

Paraurethral Glands

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Your heart pumps blood throughout your body using a network of tubing called arteries and capillaries which return the blood back to your heart via your veins. Blood pressure is the force of the blood pushing against the walls of your arteries as your heart beats.Learn more...

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