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Secretory fluid from the bulbourethral glands appearing on the glans of a human penis. The bulbourethral gland contributes up to 4 ml of fluid during sexual arousal. [6] The secretion is a clear fluid rich in mucoproteins that help to lubricate the distal urethra and neutralize any acidic urine residue that remains in the urethra.
Homologous structures in the external genitalia. This list of related male and female reproductive organs shows how the male and female reproductive organs and the development of the reproductive system are related, sharing a common developmental path. This makes them biological homologues. These organs differentiate into the respective sex ...
Diagrams to show the development of male and female generative organs from a common type. A.—Diagram of the primitive urogenital organs in the embryo previous to sexual distinction. 3. Ureter. 4. Urinary bladder. 5. Urachus. cl. Cloaca. cp. Elevation which becomes clitoris or penis. i. Lower part of the intestine. ls.
The second category are the ejaculatory fluid producing glands which include the Cowper's gland (also called bulbourethral gland), seminal vesicles, prostate, and vas deferens. The final category are those used for copulation and deposition of the sperm within the female; these include the penis, urethra, and vas deferens. [3]
reproductive - male (gland) bulbourethral glands: Simple columnar - reproductive - male (gland) seminal vesicle: Pseudostratified columnar - respiratory: oropharynx: Stratified squamous, non-keratinized - respiratory: larynx: Pseudostratified columnar, ciliated: respiratory epithelium: respiratory: larynx - true vocal cords: Stratified squamous ...
Adenocarcinoma of the gland is rare and benign tumors and hyperplasia are even more rare. [18] Bartholin gland carcinoma [19] is a rare malignancy that occurs in 1% of vulvar cancers. This may be due to the presence of three different types of epithelial tissue. [8] Inflammation of the Skene's glands and Bartholin glands may appear similar to ...
The openings of the bulbourethral glands are also found here. [2] Some textbooks will subdivide the spongy urethra into two parts, the bulbous and pendulous urethra. The urethral lumen (interior) runs effectively parallel to the penis, except at the narrowest point, the external urethral meatus , where it is vertical.
In the development of the urinary and reproductive organs, the testis is developed in much the same way as the ovary, originating from mesothelium as well as mesonephros. Like the ovary, in its earliest stages it consists of a central mass covered by a surface epithelium. In the central mass, a series of cords appear.