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Results for: 'Generalized life cycles for plants and animals Animation'
Second Stage of Labor and Delivery
By: Administrator, Views: 567
During labor forceful contractions move the fetus down the birth canal and expel it from the uterus. Signs and symptoms that labor is about to start can occur from hours to weeks before the actual onset of labor. Braxton Hicks contractions Irregular contractions that begin in the second trim...
First Stage of Labor and Delivery Video
By: Administrator, Views: 10852
During labor forceful contractions move the fetus down the birth canal and expel it from the uterus. Signs and symptoms that labor is about to start can occur from hours to weeks before the actual onset of labor. Braxton Hicks contractions Irregular contractions that begin in the second trim...
Peptide Bond Formation Animation
By: HWC, Views: 1545
During protein synthesis, peptide bonds link amino acids together in the order specified by DNA instructions. In this case, the first two amino acids in the protein are methionine and alanine. Here are ball-and-stick models of these amino acids. Peptide bond formation is a type of condensatio...
By: Administrator, Views: 10929
A reflex arc is a neural pathway that controls a reflex. In vertebrates, most sensory neurons do not pass directly into the brain, but synapse in the spinal cord. This allows for faster reflex actions to occur by activating spinal motor neurons without the delay of routing signals through the bra...
By: Administrator, Views: 11051
The cerebral cortex (plural cortices), also known as the cerebral mantle, is the outer layer of neural tissue of the cerebrum of the brain, in humans and other mammals. It is separated into two cortices, by the longitudinal fissure that divides the cerebrum into the left and right cerebral hemisp...
Cell mediated immune response to a viral infection Animation
By: HWC, Views: 3747
Intracellular pathogens are the targets of cell-mediated immune response. The process begins when a virus infects a macrophage. Another macrophage engulfs the same virus or an antigen from it. In both cells, enzymes cleave the viral antigens into small bits. The fragments move to the cell sur...
By: Administrator, Views: 11983
The ear is generally described as having three distinct divisions, each with distinct functions: External ear Middle ear Inner ear The ear contains structures for both the sense of hearing and the sense of balance. Eighth cranial nerve: Also called the acoustic or auditory nerve. Carries...
By: Administrator, Views: 10699
Pneumonia is an inflammatory condition of the lung affecting primarily the small air sacs known as alveoli. Typically symptoms include some combination of productive or dry cough, chest pain, fever, and trouble breathing. Severity is variable. In adults, bacteria are the most common causes of ...
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