Scrotum Anatomy ARDMS
Testicular blood flow is supplied by (3) arteries, however most of the blood supply is from the _______ arteries.
Deferential Cremasteric Testicular Testicular
The tunica vaginalis is a saccular extension of the ________ into the scrotal chambers. It is composed of two layers: ________ and _______
Peritoneum Visceral Parietal
The tunica albuginea extends (anteriorly/posteriorly) and enters each testicle to help form the _______ _______.
Posteriorly Mediastinum testis
True or false? The testes function as both endocrine and exocrine glands.
True
The seminiferous tubules converge to form the ________ _______. These then enter the mediastinum testis to form a ________ of channels called _______ _______. Then _______ _______ then carry the seminal fluid to the _______.
Tubuli recti Network Rete testis Efferent ductules Epididymis
Seminiferous tubules > _______ _______ > ________ _______ > ________ ductules > ________ _________ > ________ _______
Tubuli recti Rete testis Efferent Ductus epididymis Vas deferens
The dense, fibrous layer of tissue beneath the tunica vaginalis is called _______ _______.
Tunica albuginea
Each teste is surrounded by a double layer of tissue called the _______ ______, which consists of a ________ and _______ covering.
Tunica vaginalis Parietal Visceral
The structure that is surgically interrupted during a vasectomy is the ______ _______.
Vas deferens
The appendix epididymis is thought to be a remnant of the (mesonephric/mullerian/wolffian) duct or a detached ________ duct.
Wolffian Efferent
Components of the spermatic cord (6)
Testicular artery Pampiniform plexus Vas deferens Cremaster muscle Lymphatics Nerves
The visceral layer of the tunica vaginalis covers the ______ and _______
Testis Epididymis
The endocrine function of the testes is to produce ________ which determines male ________.
Testosterone Characteristics
The normal head of the epididymis measures approximately ___-___mm
10-12
Scrotal wall thickness ranges between ___-___ mm.
2-8
Adult testicles measure ___-___cm length, ___-___cm width and ___cm AP.
3-5 2-4 3
The epididymis is a _______ structure composed of a _______, ________ and ________. It is attached to the ________ and ________ scrotal Wall.
Coiled Head Body Tail Testicle Posterior
The testicular arteries emanate from the anterior ______ ______ just below the level of the ________ arteries.
Abdominal aorta Renal
The appendix vas is positioned between the _______ and ______ of the epididymis.
Body Tail
The testicular artery divides into a _______ and ______ (intratesticular) branches.
Capsular Centripetal
At their junction, the seminal vesicles and the vas deferens combine to create the ________ _______.
Ejaculatory duct
The efferent ductules converge to form a single convoluted duct (ductus ________) at the _______ of the epididymis.
Epididymis Head
The appendix epididymis is small stalk projecting off the _______ _______.
Epididymis head
The cremasteric artery is also known as the _______ ______ artery.
External spermatic
The head of the epididymis (______ ______) is located adjacent to the _______ pole of the tesstis.
Globus major Superior
The tail of the epididymis (______ ______) forms an acute angle and courses (caudally/cephalad) as the _______ _______.
Globus minor Cephalad Vas deferens
The largest part of the epididymis is the _______.
Head
The appendix testis is positioned between the ________ of the _______ and the _______ _______ of the _______.
Head Epididymis Superior pole Testis
The normal testis has a _______, _______ level echo texture
Homogeneous Medium
The epididymis is (parallel/perpendicular) to the testicle.
Parallel
The right testicular vein drains into the ______ ______ ______ when the left testicular vein drains into the ______ _______ _______.
Inferior vena cava Left renal vein
The spermatic cord enters the scrotum through the _______ ______.
Inguinal canal
The epididymis is normally _______ or slightly ________ to the testis.
Isoechoic Hyperechoic
The echogenic linear band that extends longitudinally within the testes is called the ______ _______.
Mediastinum testis
Multiple septations arise from the tunica albuginea to form the ________ _______, ______-shaped compartments that contain the _______ ______
Mediastinum testis Wedge Seminiferous tubules
The appendix vas is a remnant of the (mesonephric/mullerian/wolffian) duct.
Mesonephric
The scrotum is externally divided at the ________ into two compartments by the ______ ______. Internally, it is divided by the _______ _______.
Midline Median raphe Tunica dartos
The appendix testis is a remnant of the (mesonephric/mullerian/wolffian) duct.
Mullerian
If visualized the normal appendage appears as a small _______ projection of tissue.
Oval
Venous drainage of the testicles is performed through the _______ _______, which empties into the _______ ______.
Pampiniform plexus Testicular veins
The parietal layer of the tunica vaginalis line the ________ _______.
Scrotal chamber
The dartos divides the scrotum into two chambers called the _______ _______.
Scrotal raphe
From the vas deferens, sperm is transported to the paired _______ ______, located posterior to the _______ _______ and above the ______ ________.
Seminal vesicles Urinary bladder Prostate gland
Spermatogenesis occurs within the _________ ________.
Seminiferous tubules
The centripetal branches of the testicular artery course along the ________ converging on the _______ _______.
Septula Mediastinum testis
The mediastinum testis forms _________, which are _______-shaped compartments that contain the ________ ________.
Septula Wedge Seminiferous tubules
The exocrine function of the testes is to produce ________ which permits ________.
Sperm Reproduction
The epididymis is responsible for ________ sperm in order for them to _______ as well as ________ sperm to the _______ _______.
Storing Mature Transporting Vas deferens
The scrotum provides a means for _______ _______ for sperm, by way of the _______ muscle.
Temperature control Cremaster