A test that combines radioactive chemicals and antibiotics to detect minute quantities of substance in a patient's blood is RBC nuclear scan.
It used small amounts of radioactive material that is marked as tag and red blood cell as RBC's. After this your body will be scanned to see the cells and tracking the movement of body.
This process firstly removing blood from a vein. Then RBC are separated from the rest of the blood. After this the cells are mixed with radioactive material. After a short time, the tagged RBC are injected into your veins.
Veins is a tube like structure that forms part of blood circulation system of the body, that carrying oxygen-depleted blood.
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Answer:
A scenario where a cell may be needed to perform a form of endocytosis is when transporting large molecules.
A scenario where a cell may be needed to perform a form of exocytosis is when releasing the large molecule from the cell. The movement of macromolecules of polysaccharides or proteins out of or into the cell is known as Bulk transport.
Bulk transport is of two types which include endocytosis and exocytosis whereby both require an expenditure of energy. Exocytosis materials are being exported out of the cell via secretory vesicles.
Golgi complex they do package macromolecules into transport vesicles which travel to and spill its content out of cells. Exocytosis is very much important in the expulsion of waste materials out of the cell and also in products secretion. Endocytosis is the process where materials move into the cell.
Endocytosis is divided into the three types which include pinocytosis, phagocytosis, and receptor-mediated endocytosis.
Functional regeneration of axons occurs more frequently in the peripheral nervous system (PNS) than in the CNS because of two main reasons which are-
- The environment in the central nervous system is not suitable for the regeneration or repair of axons.
- The axons of the neurons in the CNS cannot upregulate genes for the growth or regeneration of the axons. Whereas the axons in the PNS can upregulate these genes to a much greater extent than the CNS.
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The central nervous system(CNS) and the peripheral nervous system(PNS), are the two branches of the nervous system in the body. The central nervous system consists of the spinal cord and the brain. While the peripheral nervous system consists of the nerves and neurons that arise from the spinal cord and the brain. It is difficult for axons to repair themselves in the central nervous system because these axons are present in and around the main structures that control the entire nervous system.
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Answer:
Answered below
Explanation:
A reflex is referred to as an instantaneous, automatic and involuntary response or reaction to stimulus.
For a reflex to occur, sensory stimulus activates receptors which transmit the signal to the central nervous system through the afferent neurons. After processing the information, the central nervous system sends response through the efferent neurons to the target organs. Reflexes do not require the higher centers of consciousness.
Reflexes can be categorised as visceral or somatic. Somatic reflexes involve involuntary skeletal muscle motor responses.
A stretch reflex is an example of somatic reflexes. It shows how a reflex is related to a muscle. When the skeletal muscle is stretched, the muscle spindles are triggered. The muscle spindles are the sensory receptors present in the muscle. The afferent axons from these receptors transmit the signal to the motor neurons in the spinal cord and these sends efferent signals that stimulate the muscle to contract in response.
Answer:
Community?
Explanation:Which level of organization describes an oak forest with bacteria, fundi, deal leaves, butterflies, blue jays, soil, and stones?
