Answer
The Ischiocavernosus muscle:
Location of this muscle is in the superficial perineal space
Action; It retains the erection of the penis the and the clitoris
Origin: The ramus and tuberosity of the ischium.
Insertion: This muscle ensheaths the internal structures of the penis and the clitoris.
Innervation is supplied by the pudendal nerve.
Work Step by Step
Bulbospongiosus muscle:
This muscle is located in the superficial perineal space.
It acts to expel urine from the urethra after the bladder has emptied. It also aids in the erection of the penis and the clitoris. In males, it expels semen during ejaculation. In females it constricts the vaginal opening and expels secretions of the greater vestibular glands.
Origin is on the perineal body and median raphe (of penis). It inserts on the sheath of the root of the penis (males), and onthe pubis symphysis (females). Innervation is supplied by the pudendal nerve.
