Search results for: 'Overview of interactions in antibody-mediated and cell-mediated immunity Animation'

Watch Later 1:13

By: HWC, Views: 4893

Blood is collected from the person being analyzed. The blood is added to a growth medium that also contains a chemical that stimulates mitosis. The cells are allowed to grow in this medium for two or three days at body temperature. Colchicine is added to arrest cell division at metaphase. T...

Watch Later 0:43

Body plan of euglena Animation

By: HWC, Views: 2064

Euglenoids are single-celled organisms that live in lakes and ponds. A contractile vacuole pumps out the water that diffuses into the cell from its hypotonic surroundings. The body is covered by a translucent pellicle composed of flexible strips of a protein-rich material. Light passe...

Watch Later 1:25

Apicomplexan life cycle Animation

By: HWC, Views: 2052

Malaria is caused by the sporozoan, Plasmodium. It is transferred to humans by mosquitoes. When an infected mosquito feeds, infective sporozoites move from her salivary glands into the human body. The bloodstream carries the sporozoites to the liver. Here, they reproduce asexually and...

Watch Later 0:51

Osmosis - Isotonic, Hypotonic, and Hypertonic Solutions

By: HWC, Views: 7843

Isotonic: Equal Water moves in and out of the cell at an equal rate. The cell remains unchanged. Hypotonic: "hypo" hippo Water moves into the cell, making it swell and get fat (like a hippo). Eventually the cell can rupture and burst (aka lyse). Hypertonic: "like a raisin" Water leaves...

Watch Later 1:29

Sickle Cell Anemia

By: Administrator, Views: 10781

The clinical manifestations of sickle cell anemia result from pathologic changes to structures and systems throughout the body.

Watch Later 2:35

Cytotoxic T cell receptors, activation, proliferation, differentiation & action

By: HWC, Views: 8055

• Most cells which have CD8 on their surface become cytotoxic T cells (Tc cells). • CD8 T cells recognize a foreign antigen when it is presented in conjunction with the protein, MHC-I. • Nearly all nucleated cells in the body express MHC-I molecules. • T cells that recognize self-pe...

Watch Later 0:23

Optic Nerve and Optic Disk Animation (Part 2 of 2)

By: Administrator, Views: 10736

The optic disc or optic nerve head is the point of exit for ganglion cell axons leaving the eye. Because there are no rods or cones overlying the optic disc, it corresponds to a small blind spot in each eye. The ganglion cell axons form the optic nerve after they leave the eye. The optic disc ...

Watch Later 1:19

Cleavage and Implantation Animation

By: HWC, Views: 5261

✔ https://HomeworkClinic.com ✔ https://Videos.HomeworkClinic.com ✔ Ask questions here: https://HomeworkClinic.com/Ask Follow us: ▶ Facebook: https://www.facebook.com/HomeworkClinic ▶ Review Us: https://trustpilot.com/review/homeworkclinic.com Fertilization typically takes pl...

Watch Later 0:57

Green alga life cycle Animation

By: HWC, Views: 2362

Chlamydomonas zoospores are haploid flagellated cells. As long as conditions are favorable, these cells reproduce asexually. As many as sixteen cells may form by mitosis within a parent cell. Daughter cells escape when the cell wall ruptures. When conditions become less favorable, the...

Search Results