Human excreatory system for class 10th

Excreation:- The process of removal of metabolic wastes from the body of an organism is called as Excreation.

The full fludged system is concerned with the removal for metabolic wastes known as excreatory system.
Here we will descuss Human excreatory system.

In Human beings the excreatory organ is kidney. There are two kidneys in human beings, named as left and right kidney. These two kidneys filter the blood taking wastes out from the blood. The kindneys are bean shaped.

Nephron is the structural and functional unit of kidney.

Renal artery is a blood vessel which supplies blood to the kidney for filteration. The filtered blood is taken to the heart through Renal vein.

Ureter:- Each kidney has a narrow, whitish, tubular struction about 25 to 30cm long called "Ureters" opening in a somewhat pear shaped muscular sac like structure called " Urinary Bladder"

Ureters carry metablic waste "urine" from their respective kidneys to the Urinary Bladder, where it gets temporarly stored for sometime. Than this waste comes out of the body through a canal like structure called urethra running through the pines in males and in felmales ends in vegina from the neck of the urinary bladder.

Note:- The male urethra carries both semen and urine but in females it is only concerned with excreation not for reproduction.

Comments

Male reproductive system

Reproduction In Human Beings Reproduction:- It is the biological process in which organisms give offspring for the continuity of race. A complete system is concerned to perform this function called reproductive system. Here we are going to discuss sexual reproduction in Human Beings. As we human beings are diocious i.e male and female sexes are separate Male reproductive system in Human Beings. Testis:- These are the primary sex organs of males, testis produce male sex cells (sperms) as well as male sex hormone testosterone. Testis lie out side the body between the lungs in a muscular pouch called Scrotum.Scrotum maintains the temperature of testis which is below 3℃ than body temperature. Testis are two in number. Alongside the testicles are the epididymis and the vas deferens. which make up the duct system of the male reproductive organs. The vas deferens is a muscular tube that passes upward alongside the testicles and transports the sperm-...

Structure and function of Neuron

Neurons (nerve cells) are the functional units of the nervous system. A typical neuron is divided into three parts i.e Cell body or Soma,Some contains all the cell organelles like Nucleus, Mitochondria etc. Dendrites and Axon. Schwann cells of Axon are covered by Myelin Sheath. Dendrites are branched like structures on Soma. Axon terminal is also branched like structure. The signals are received from neuron by dendrites and are send to next neuron bye chemo-electrical impulses through axon. The junction between the two cells is known as Synapses.In neuron signal travels in the form of chemicals but at synapses in changes in to electrical impulses.

Simple Biology

Search This Blog