which range from the size of a grain of sand up to the size of a pea. Eventually, the stone needs to come out, and its only exit point is the urethra. Peeing out a kidney stone can be very painful, especially for men on account of their having longer urethras. In extreme cases...
Question 2It is reasonable to state that C A. diagram 1 could represent carbon dioxide exiting a leaf cell during photosynthesis. B. diagram 2 could show facilitated diffusion of ure a out of an active muscle cell. C. diagram 3 could represent pumping potassium ions into a cell. D. diagra...
The majority of these reflexions listed by Lotmar and Picken and by Herzog and Jancke can be indexed satisfactorily in terms of a unit cell similar to that of Lotmar and Picken, but with b = 5 o 3 A. This o is indicated in the accompanying table, in which the calculated spacings ...
The cardiac cycle is the period between the start of one heartbeat and the start of another. One cycle is complete when the heart fills with blood and then ejects the blood. The cardiac cycle has alternating phases of contraction, called systole, and relaxation or diastole. Based on a hear...
Top anatomy diagrams including images of human anatomy systems, human body, organs, bones and muscles
The Subcutis is also known as thehypodermis. This structure of the skin is mostly made of fattyadipose tissueand anchors the skin to muscle tissue. This is not considered a "layer" of the skin, rather a division that is responsible for attaching skin to muscle. ...
DURING the past twenty-five years, four samples of dried muscle have been made which show a striking X-ray diagram, with sharp diffraction maxima superimposed on the α-keratin pattern usually obtained from muscle. These samples of muscle were from the frog (sartorius muscle, Herzog and Janck...
Physical and technical parameters determining the functioning of a kinesin-based cell-free motor system Kinesin is a microtubule-associated protein, converting chemical into mechanical energy. Based on its ability to also work outside cells, it has recently b... R Stracke,KJ B?Hm,J Burgold,.....
Why Do Cells Need a Cytoskeleton? While some people might imagine cells as unstructured, powerful microscopes used in cell biology reveal that cells are very organized. One main component is vital to maintaining this shape and level of organization: thecytoskeletonof the cell. The protein filaments...
Structure of the Endoplasmic Reticulum The first scientists to observe the endoplasmic reticulum – while taking the first electron micrograph of a cell – were struck by the endoplasmic reticulum's appearance. For Albert Claude, Ernest Fullman and Keith Porter, the organelle looked "lace like" b...