Question

Penile urethra traverses through
A.Corpora cavernosa
B.Corpus spongiosum
C.Corpus callosum
D.Corpus striatum

Answer 1

Corpus spongiosum is also known as the male urethra. This is the narrow structure fibromuscular tube like structure which conducts urine and semen from the bladder.

Complete step by step answer:
Penile urethra is the structure connected to the urinary bladder to the penis. It functions more than as urethra, which controls voluntary and involuntary urination. It includes both internal and external sphincters of muscles. The transverse section of the Penile urethra contains two corpus cavernosa on the dorsal side and one corpus spongiosum between them in the ventral side. The Penile urethra traverses through the corpus spongiosum. The corpora cavernosa contains tissues that help in the erection of the penis. Corpus callosum is a band of nerve fibre in the brain. It connects the left and right cerebral hemisphere.
Additional information: the corpus spongiosum is enveloped by a thin layer of tunica albuginea and contains less erectile tissue than the corpora cavernosa. It is traversed by penile urethra, which opens at the tip of the glans. The corona of glans contain many small preputial glands that secrete the sebaceous product called the smegma.

Hence the correct answer is option(B)

Note: This penile urethra is divided into four segments. Out of which pre pro and pro statics urethra runs in the front side of gland. Corpus striatum is also a part of the basal ganglia of the brain. The corpus spongiosum is enveloped by a thin layer of tunica albuginea and contains less erectile tissue than the corpora cavernosa. It is traversed by penile urethra, which opens at the tip of the glans.