Physiology of the
Mature Sperm:
Function of the Seminal
Vesicles:
Secretes a mucous material
containing an abundance of
fructose
,
citric acid
, and other
nutrient substances, as well as large
quantities of
prostaglandins and
fibrinogen
.
Function of the Prostate Gland:
• Secretes a thin, milky fluid that
contains calcium, citrate ion,
phosphate ion, a
clotting enzyme
,
and a
profibrinolysin
with slight
alkaline characteristic
.
Semen composed of:
• Fluid and sperm from the vas deferens (about
10 per cent of the total).
• fluid from the seminal vesicles (almost 60 per
cent).
• Fluid from the prostate gland (about 30 per
cent).
• Small amounts from the mucous glands,
especially the bulbourethral glands.
Testosterone:
Effect of Testosterone on Development of
Adult Primary and Secondary Sexual
Characteristics
Effect on the Distribution of Body Hair:
Effect on the Voice:
Testosterone Increases Thickness of the
Skin and Can Contribute to Development
of Acne:
Testosterone Increases Protein
Formation and Muscle Development
Testosterone and Bone
1. Causes Calcium Retention.
2. Causes the pelvis to narrow its outlet and
lengthen it .
3. The testosterone also causes the epiphyses of
the long bones to unite with the shafts of the
bones at an early age.
Testosterone Increases Basal
Metabolism:
Effect on Red Blood Cells:
Control of Male Sexual Functions by Hormones
from the Hypothalamus and Anterior Pituitary
Gland:
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