Question

Describe the various components of the urinary system of a man.

Answer 1

Urinary system:-

1. The group of organs that make urine and remove it from the body is called the urinary system.

The components of the urinary system of a man:-

1. The urinary system of human beings consists of the following main organs: Two kidneys, two ureters, Bladder and Urethra.

(A) Kidney:-

1. The kidneys are reddish-brown colored and bean-shaped structures present in the upper part of the abdomen along the dorsal body wall, one on either side of the vertebral column.
2. Each kidney contains a large numbered of coiled tubes called a nephron.
3. The kidneys remove the poisonous substance urea, other waste salts, and excess water from the blood excreted by the kidney in a yellowish liquid called urine.
4. Kidney filtered blood and removed unwanted substances present in it.

(B) Ureters:-

1. The ureters are a pair of long, narrow, thin-walled, and tubular structures which start from the kidney, run down, and open in the urinary bladder.
2. The ureters conduct the urine from the kidneys to the urinary bladder.

(C ) Urinary bladder:-

1. The urinary bladder is a thin-walled, elastic, pear-shaped, and distensible sac present in the lower part of the abdomen.
2. The urinary bladder stores the urine until the increase in pressure and urges for expelling.

(D) Urethra:-

1. The urethra is a muscular and tubular structure that extends from the urinary bladder to the outside.
2. The urethra carries the urine to the outside.

Adrenal gland:-

1. Adrenal gland releases the hormone aldosterone that sends signals to the kidneys to absorb more sodium into the bloodstream and release potassium into the urine.