Posts

Showing posts with the label Cardiovascular system

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 ...
Post a Comment
Read more

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 pericardi...
1 comment
Location: India
Read more

Popular posts from this blog

Endocrine system

-
Image
Pituitary gland Pineal gland Thyroid gland  Parathyroid gland Thymus gland Adrenal gland Pancreas gland Ovary gland ( female) Testes gland (male) Endocrine system The endocrine gland consist of gland The endocrine consist of gland widely separated from each other with no physical connection and gland are group of secretary cells surrounded by an extensive network of capillaries that facilities diffusion of hormones . The hormones is chemical messenger from the secretary cells into the blood stream. They are also referred to as ductless gland because hormones diffuse directly into the blood stream to target tissue and organ that maybe quite distant where they influence cell  growth and metabolism . Different between exocrine and endocrine  Endocrine  Ductless  Secret direct in the blood Secret the hormone  Exocrine  Having less Secrete on epithelial surface the tissue  Secret the enzyme  Growth ...
Read more

Lymphatic system

-
Image
Lymph is the tissue fluid passes from  blood capillaries in the tissue space. The lymph flow in which system called  lymphatic system  . Function of the lymphatic system   Lymph nodes  a protect the body against infection by filtering and destroying micro-organisms . Lymph nodes are sites where  lymphocytes are produced . The lymphatic vessels carry waste products from tissue to blood . It maintains immunity in the body . Lymph Lymph is the clear water fluid similar in position to plasma . Lymph is formed by the filtration of tissue fluid in to  lymph capillaries  . Lymph capillaries(lymph vessels) Lymph capillaries originate as blind - end tubes in the interstitial space . They have the same structure as blood capillaries it means a single layer of  endothelial cell  a but there wall are more permeable . Lymph node  Lymph node have on outer capsule of fibrous tissue . The main substance of t...
Read more