Is it true that the reason an elephants trunk is wrinkled is because his scrotum is located there?

1. Do elephants have a scrotum?
2. What is the use of scrotum?
3. Why does the scrotum and testes maintain low temperature?
4. How many scrotum does a man have?
5. What is an elephant scrotum?
6. Do elephants have big balls?
7. Does urine and sperm come from the same hole?
8. Why does a man's balls tighten up?
9. Where does sperm come from in a man?
10. How does the animal regulate the temperature of its scrotum during hot and cold climatic conditions?
11. Why does the scrotum regulate temperature?
12. Is there liquid in your balls?
13. Why do men's balls turn black?

Do elephants have a scrotum?

But for a whole different group of mammals, having no scrotum at all is the norm. Mammalian species of the Afrotheria clade—which includes elephants, manatees, cape golden moles and rock hyraxes—instead retain their testicles inside the abdomen in a condition called “testicondy.”

What is the use of scrotum?

Scrotum. The bag of skin that holds and helps to protect the testicles. The testicles make sperm and, to do this, the temperature of the testicles needs to be cooler than the inside of the body.

Why does the scrotum and testes maintain low temperature?

Cremaster muscle.

Each cremaster muscle surrounds one of the testicles and its spermatic cord. The muscle helps to move the testicle toward and away from the body to maintain the ideal temperature for sperm production. This is why the scrotum hangs lower in warm conditions and closer to the body in cold weather.

How many scrotum does a man have?

The average size of a man testicle is about 4 x 3 x 2 centimeters (cm) in size and is oval shaped. Most men have two testicles, also known as testes. It's common for one of a man's testicles to be a different size than the other testicle. Testicles reside in the scrotum, attached at each end to the spermatic cord.

What is an elephant scrotum?

From: PLOS. Molecular “Fossils” Reveal Evolutionary History of Descending Testicles. Afrotherians, such as elephants, are the only group of mammals that do not show testicular descent, but rather have testes positioned deep inside the abdomen. Conventional fossils reveal an animal's bones, but not soft body parts.

Do elephants have big balls?

First, both African and Asian elephants have the largest testicles among mammals in absolute terms (meaning not relative to body size). Testicles of the African elephant weigh about 10 pounds combined. African elephants also have some of the greatest numbers of sperm per ejaculate.

Does urine and sperm come from the same hole?

The glans penis is the slightly larger area towards the end of the penis and contains the opening of the urethra. The urethra. This is the tube which passes from the bladder down the penis to the outside. It carries both urine and semen.

Why does a man's balls tighten up?

The scrotum also moves in response to heat to protect the delicate testicles and sperm inside. In doing so, it helps keep the sperm viable by preventing them from becoming too warm or too cold. In cold weather, the skin tightens up as the cremaster muscle pulls the testicles toward the body to keep them warm.

Where does sperm come from in a man?

Sperm develop in the testicles within a system of tiny tubes called the seminiferous tubules. At birth, these tubules contain simple round cells. During puberty, testosterone and other hormones cause these cells to transform into sperm cells.

How does the animal regulate the temperature of its scrotum during hot and cold climatic conditions?

Anatomy and physiology

The tunica dartos, a thin sheet of smooth muscle under the scrotal skin, is controlled by sympathetic nerves and contracts and relaxes in cold and warm environments, respectively. The cremaster muscle also contracts to draw the testes closer to the body under cold ambient conditions.

Why does the scrotum regulate temperature?

The function of the scrotum is to protect the testes and to keep them at a temperature several degrees below the normal body temperature. The scrotum thus protrudes from the body wall: moreover, it contracts from cold, exercise, or sexual stimulation and expands and relaxes when warm.

Is there liquid in your balls?

The scrotum is the sac of skin that holds the testicles once they descend. During development, each testicle has a naturally occurring sac around it that contains fluid. Normally, this sac closes itself and the body absorbs the fluid inside during the baby's first year.

Why do men's balls turn black?

Testicular bruises occur when the arteries and veins in the skin surrounding the testicles are injured and broken open. This causes blood to leak under the skin, resulting in discoloration. Testicle bruises usually appear after an injury.