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Hair follicle
A hair follicle is part of the skin that grows hair by packing old cells together. Attached to the follicle is a sebaceous gland, a tiny sebum-producing gland found everywhere except on the palms, ... > more -
Bone marrow
Bone marrow is the tissue comprising the center of large bones. It is the place where new blood cells are produced. Bone marrow contains two types of stem cells: hemopoietic (which can produce blood ... > more -
Peripheral nervous system
The peripheral nervous system or PNS, is part of the nervous system, and consists of the nerves and neurons that reside or extend outside the central nervous system (the brain and spinal cord) to ... > more -
White blood cell
White blood cells (also called leukocytes or immune cells) are cells which form a component of the blood. They help to defend the body against infectious disease and foreign materials as part of the ... > more -
Biophysics
Biophysics (also biological physics) is an interdisciplinary science that applies the theories and methods of physics, to questions of biology. Biophysics research today comprises a number of ... > more -
Allele frequency
Allele frequency is a measure of the relative frequency of an allele on a genetic locus in a population. Usually it is expressed as a proportion or a percentage. In population genetics, allele ... > more -
Motor neuron
In vertebrates, motor neurons (also called motoneurons) are efferent neurons that originate in the spinal cord and synapse with muscle fibers to facilitate muscle contraction and with muscle spindles ... > more -
Egg (biology)
In most birds and reptiles, an egg is the zygote, resulting from fertilization of the ovum. It nourishes and protects the embryo. Oviparous animals are animals that lay eggs, with little or no other ... > more -
Lymphoma in animals
Lymphoma in animals is a malignant cancer originating from lymphocytes, which are an important component of the immune system. Lymphoma also occurs in humans. The disease occurs in lymph nodes, bone ... > more
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