Posts

Showing posts from February, 2020

Nervous system

-
Definition  The nervous system consists of brain coma spinal cord peripheral nerve. The nerves health to transmit the message grow the impulses from different part of the body to the brain and spinal cord. The nervous system in divided in following part------- Central nervous system Peripheral nervous system Autonomic nervous system Central nervous system It consists then and spinal cord. Peripheral nervous system It consists of fall nervous outside the brain or spinal cord. Autonomic nervous system It consists of sympathetic and parasympathetic. Neurone  The nervous consist of vast number of cell called neurone. Neurone is the structural and fundamental unit of the nervous system Play Store the neurone are supported by a special type of connective tissue is called neuroglia, each neurone have a cell body and its process. Cell body The nerve cell are vary considered size and shape but they are too small cell body from the grey matter of The nervous system an
Post a Comment
Read more

Excretory system (urinary system)

-
Image
Urinary tract  The  urinary system , also known as the  renal system  or  urinary tract , consists of the kidneys, ureters, bladder, and the urethra. The purpose of the  urinary system  is to eliminate waste from the body, regulate blood volume and blood pressure, control levels of electrolytes and metabolites, and regulate blood pH. It consists of the following structure first ------- Two kidney It is secret the urine. Two ureter Which is convey the urine from kidney to the urinary bladder. Urinary bladder The urinary bladder urine collect and temporally stored. Urethra the urethra through which the urine is discharge from the urinary bladder to the exterior. Function of the urinary system Formation and secretion of urine. Production and secretion of the erythrocytes position (RBC formation) the hormone that control. Production secretion of renin and important enzyme in the central of BP. Urine stored in the bladder and excreted by the proces
Post a Comment
Read more

Popular posts from this blog

Cardiovascular System

-
Image
                       Position of the heart       The  heart lies in the thoracic cavit y in the media - sternum (the space between the lungs ).It lies oblique, a little more to the left then the right and present a base above and apex below .The apex is about 9cm to the left of the midline at the level of the 5th intercostal space, the base extend to the level of the 2nd ribs .         *  Structure of heart   *        The heart is composed of three layer of tissue ----------- 1. Pericardium  2. Myocardium  3. Endocardium      1. Pericardium   The pericardium is the outer layer and is made of to sac . The outer sac ( the fibrous pericardium ) consist of fibrous tissue. The inner layer of  pericardium is cold serous pericardium . The outer layer of parietal pericardium. Tha inner layer of serious pericardium is cold visceral pericardium . The serous membrane consist of ephythelium cells .It secretion serous fluid in to the space bitween the visc
Read more

Nervous system

-
Definition  The nervous system consists of brain coma spinal cord peripheral nerve. The nerves health to transmit the message grow the impulses from different part of the body to the brain and spinal cord. The nervous system in divided in following part------- Central nervous system Peripheral nervous system Autonomic nervous system Central nervous system It consists then and spinal cord. Peripheral nervous system It consists of fall nervous outside the brain or spinal cord. Autonomic nervous system It consists of sympathetic and parasympathetic. Neurone  The nervous consist of vast number of cell called neurone. Neurone is the structural and fundamental unit of the nervous system Play Store the neurone are supported by a special type of connective tissue is called neuroglia, each neurone have a cell body and its process. Cell body The nerve cell are vary considered size and shape but they are too small cell body from the grey matter of The nervous system an
Read more

Digestive system

-
Image
                 The digestive system describe the alimentary canal . it's accessory organ and a variety  of digestive processes that prepare food eaten in the diet for absorption. the aliminentary canal begins at the mouth passes through the thorax  abdomen and pelvis end the anus .           Process of digestion There are five type of process in the Digestive------- 1. Ingestion-- This is the taking of food in to the alimentary tract it means drinking and eating . 2. Propulsion-- This mixes and move the contents (food) along the alimentary tract . 3. Digestion -- This consist of ----------- (I) Mechanical breakdown of food by      mastication ( chewing ). (ii) Chemical digestion of food in to small          molecules by enzymes present in                  secretion produced by g lands an                    accessory organ the d igestive system . 4. Absorption --  This is the process by which digestive food substanc      pass through the wall
Read more