HomeCoursesMEDSCI 201: Human Structure and FunctionLecture 7 Lecture 7 0% Question 1 of 29 Where are the gonads formed?= Gonadal ridges in the upper lumbar region Where are the gonads formed?= Gonadal ridges in the upper lumbar region Question 1 of 29Question 2 of 29 What attaches the testes to the abdominal wall?= The gubernaculum What attaches the testes to the abdominal wall?= The gubernaculum Question 2 of 29Question 3 of 29 What is chryptorchidism?= Failure of the testes to descend What is chryptorchidism?= Failure of the testes to descend Question 3 of 29Question 4 of 29 What are the risks associated with cryptorchidism? (2)= Infertility, testicular cancer What are the risks associated with cryptorchidism? (2)= Infertility, testicular cancer Question 4 of 29Question 5 of 29 What are the components of the heat exchange system? (2)= High density of sweat glands, spermatic artery is cooled by veins returning cooled blood to the heart What are the components of the heat exchange system? (2)= High density of sweat glands, spermatic artery is cooled by veins returning cooled blood to the heart Question 5 of 29Question 6 of 29 What marks the division of the scrotum?= Perineal raphe What marks the division of the scrotum?= Perineal rapheQuestion 6 of 29Question 7 of 29 What controls the position of the testes in relation to the body?= Cremaster muscle What controls the position of the testes in relation to the body?= Cremaster muscleQuestion 7 of 29Question 8 of 29 What is the fibrous sheath covering each testicle?= Tunica albuginea What is the fibrous sheath covering each testicle?= Tunica albugineaQuestion 8 of 29Question 9 of 29 How long does spermatogenesis take?= 64 days How long does spermatogenesis take?= 64 daysQuestion 9 of 29Question 10 of 29 How often does one section of the seminiferous tubule begin a new cycle of spermatogenesis?= 16 days How often does one section of the seminiferous tubule begin a new cycle of spermatogenesis?= 16 daysQuestion 10 of 29Question 11 of 29 What is responsible for constant sperm production?= The spermatogenic wave What is responsible for constant sperm production?= The spermatogenic waveQuestion 11 of 29Question 12 of 29 What matures sperm?= Epididymis What matures sperm?= EpididymisQuestion 12 of 29Question 13 of 29 Where does the epidiymis receive sperm from?= The rete testes Where does the epidiymis receive sperm from?= The rete testesQuestion 13 of 29Question 14 of 29 How long do sperm stay in the epidiymis?= 12 days How long do sperm stay in the epidiymis?= 12 daysQuestion 14 of 29Question 15 of 29 How do sperm move through the seminiferous tubules?= Movement of fluid How do sperm move through the seminiferous tubules?= Movement of fluidQuestion 15 of 29Question 16 of 29 How is the fluid from the seminiferous tubules absorbed?= Stereocilia in the caput (head) epididymis How is the fluid from the seminiferous tubules absorbed?= Stereocilia in the caput (head) epididymisQuestion 16 of 29Question 17 of 29 What happens in the body of the epididymis? (2)= Fluid content decreases, convolutions decrease What happens in the body of the epididymis? (2)= Fluid content decreases, convolutions decreaseQuestion 17 of 29Question 18 of 29 What happens in the tail (caudal) of the epididymis? (2)= Sterocilia reduced, muscularity increased What happens in the tail (caudal) of the epididymis? (2)= Sterocilia reduced, muscularity increasedQuestion 18 of 29Question 19 of 29 What is the concentration gain of sperm entering the epididymus to sperm leaving the tail?= 100X What is the concentration gain of sperm entering the epididymus to sperm leaving the tail?= 100XQuestion 19 of 29Question 20 of 29 What does the tail of the epididymis join?= The vans deferens What does the tail of the epididymis join?= The vans deferensQuestion 20 of 29Question 21 of 29 What produces movement of sperm in the vans deferens?= Peristalsis What produces movement of sperm in the vans deferens?= PeristalsisQuestion 21 of 29Question 22 of 29 How long are the seminiferous tubules and how many are there? (2)= 800mm X 800 tubules How long are the seminiferous tubules and how many are there? (2)= 800mm X 800 tubulesQuestion 22 of 29Question 23 of 29 How many sperm enter the epididymis?= 50,000,000 How many sperm enter the epididymis?= 50,000,000Question 23 of 29Question 24 of 29 How long is the vans deferens (VD)?= 45cm How long is the vans deferens (VD)?= 45cmQuestion 24 of 29Question 25 of 29 What is the primary function for the VD?= Sperm storage What is the primary function for the VD?= Sperm storageQuestion 25 of 29Question 26 of 29 How many muscle layers does the VD contain?= 3 How many muscle layers does the VD contain?= 3Question 26 of 29Question 27 of 29 What happens to the VD prior to connecting to the ejaculartory duct?= Becomes the enlarged and folded ampulla What happens to the VD prior to connecting to the ejaculartory duct?= Becomes the enlarged and folded ampullaQuestion 27 of 29Question 28 of 29 How many sperm are produced each minute?= 200,000 How many sperm are produced each minute?= 200,000Question 28 of 29Question 29 of 29 What happens to this sperm? (2)= Ejaculated, lost in urine What happens to this sperm? (2)= Ejaculated, lost in urineQuestion 29 of 29 Loading...
