Search results for: 'Cytotoxic T cell proliferation and differentiation'

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By: Administrator, Views: 454

A man’s reproductive system is specifically designed to produce, store, and transport sperm. Unlike the female genitalia, the male reproductive organs are on both the interior and the exterior of the pelvic cavity. They include: the testes (testicles) the duct system: epididymis and vas def...

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Central Nervous System Animation

By: Administrator, Views: 10853

Consists of the brain and spinal cord. CNS receives impulses from throughout the body processes the information responds with an appropriate action Brain and spinal cord can be divided into: gray matter (unsheathed cell bodies and true dendrites) white matter (myelinated nerve fibers) ...

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Introduction to Genetics

By: Administrator, Views: 10656

Genetics is a branch of biology concerned with the study of genes, genetic variation, and heredity in organisms. Gregor Mendel, a scientist and Augustinian friar, discovered genetics in the late 19th-century. Mendel studied "trait inheritance", patterns in the way traits are handed down from p...

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Oogenesis Animation

By: Administrator, Views: 10909

Located on either side of the uterus, ovaries are almond-shaped organs attached to the uterus by the ovarian ligament and lie close to the fimbriae of the fallopian tubes. The anterior border of each ovary is connected to the posterior layer of the broad ligament by the mesovarium (portion of th...

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Components of the Nervous System

By: Administrator, Views: 435

The nervous system is the part of an animal that coordinates its actions by transmitting signals to and from different parts of its body. The nervous system detects environmental changes that impact the body, then works in tandem with the endocrine system to respond to such events. Nervous tissue...

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Introduction to Diabetes

By: Administrator, Views: 10885

Hyposecretion or inadequate use of insulin may result in diabetes mellitus (DM). Hypersecretion of insulin may result in hyperinsulinism. Diabetes mellitus is the most common endocrine system disorder of childhood. Symptoms include: Polyuria Polydipsia Polyphagia Management of DM durin...

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What are the Parts of a Plant Cell?

By: HWC, Views: 6793

Every chloroplast in a plant cell is packed with stacks of flattened sacs called thylakoids. The thylakoid membranes contain chlorophyll, as well as most of the other components required for the light reactions of photosynthesis. The chlorophyll-containing structures within the membranes are c...

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Introduction to Insulin

By: Administrator, Views: 11841

The islets of Langerhans are composed of three major types of cells: Alpha cells secrete glucagon, elevating blood sugar. Beta cells secrete insulin, maintaining normal blood sugar. Delta cells secrete somatostatin, which suppresses release of glucagon and insulin. Hyposecretion or inadequa...

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Junction Types - Tight and Adherens Junctions

By: HWC, Views: 8048

Many tissues contain in tercellular junctions between cells. 1. Tight junction 2. Adherens junction 3. Desmosome 4. Hemidesrnosome 5. Gap junction 1. Tight junction • Web-like strips of proteins fuse together adjacent plasma membranes. • Tight junctions prevent the transport...

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