The brain is a large organ which lies in the cranial cavity. The average weight of brain is 1.4kg. It is divided in 4 parts: cerebrum, brain stem, diencephalon and cerebellum. DIENCEPHALON This part of brain connects the cerebrum to […]
PANCREATIC ISLETS Pancreas are both, exocrine as well as endocrine. the exocrine pancreas secrete pancreatic juice, while the endocrine pancreas consist of clusters of cells; known as pancreatic islets present throughout the gland. the pancreatic hormones are secreted directly into […]
REPRODUCTIVE CYCLE It refers to the series of events which regularly occurs in female after every 26-30 days. It occurs throughout the childbearing period between menarche and menopause. The cycle leads to the changes which takes place regularly in ovaries […]
CENTRAL NERVOUS SYSTEM The CNS is divided in two essential pats: the brain and spinal cord. Both these parts are surrounded and protected; brain is enclosed by the skull and the spinal cord is protected by vertebral column. The membranous […]
BRAIN The brain is a large organ which lies in the cranial cavity. The average weight of brain is 1.4 kg. It is divided in 4 parts: cerebrum, brain stem, diencephalon and cerebellum. CEREBRUM Cerebrum is the largest part of […]
CRANIAL NERVES There are 12 pairs of cranial nerves which originate from the nuclei in the inferior surface of the brain, out of which some are sensory some are motor nerves and the remaining one are the mixed nerves that […]
The peripheral nervous system consist of 3 parts- 31 pairs of spinal nerves 12 pairs of cranial nerves autonomic nervous system Autonomic Nervous System ANS is a involuntary part of nervous system and controls involuntary body activities. Stimulation of ANS […]
The spinal cord is a long cylindrical portion of the central nervous system. It is suspended in the vertebral column and is enclosed by the meninges and cerebrospinal fluid. The spinal cord is continuous with the medulla oblongata and extends […]
Transport of material across the plasma membrane of cell is essential for life of a cell. Certain substances must move into the cell for metabolic activities; while some substances which are produced by the cell or are waste products should […]