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Smooth muscle cells within the walls of blood vessels are mainly responsible for vasoconstriction. When stimulated by various factors such as hormones or neurotransmitters, these smooth muscle cells contract, narrowing the diameter of the blood vessel and increasing vascular resistance. This process helps regulate blood flow and blood pressure in the body.
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Which part of brain control vasoconstriction?
The brainstem, specifically the medulla oblongata, regulates vasoconstriction through the autonomic nervous system. The sympathetic nervous system is responsible for increasing blood vessel tone through the release of norepinephrine, leading to vasoconstriction.
What type of muscle tissue causes vasoconstriction?
Smooth muscle tissue causes vasoconstriction. This type of muscle tissue is found in the walls of blood vessels and is responsible for regulating blood flow by constricting and dilating the vessels.
In what vascular tissue is sugar mainly transported?
Sugar is mainly transported in the phloem, which is one of the two types of vascular tissues in plants. The phloem is responsible for the translocation of organic nutrients, particularly sucrose, from sources such as leaves (where photosynthesis occurs) to sinks like roots, fruits, and growing tissues. This transport process is essential for plant growth and energy distribution.
Which substance in the blood is responsible for carryingoxygen to the tissues?
Hemoglobin is the substance in the blood responsible for carrying oxygen to the tissues. It is a protein found in red blood cells that binds to oxygen in the lungs and releases it to the body's tissues and organs.
What tissues are responsible for gas exhange in the frog?
skin is responsible for gas exchange in frogs, but not in snakes
Are the tissues of stem and root responsible for gaseous exchange?
Mainly they are not.Leaves do the main job
Which artery wall is responsible for vasoconstriction?
the tunica media
Which part of brain control vasoconstriction?
The brainstem, specifically the medulla oblongata, regulates vasoconstriction through the autonomic nervous system. The sympathetic nervous system is responsible for increasing blood vessel tone through the release of norepinephrine, leading to vasoconstriction.
Where are free nerve ending found?
They are found in many tissues in the body, mainly in the skin. They are responsible for pain reception and are sometimes referred to as nociceptors.
What is the largest lipoprotein?
The largest lipoprotein is chylomicrons, which are responsible for transporting dietary triglycerides from the intestine to various tissues in the body. They are mainly composed of triglycerides, cholesterol, and proteins.
What is the food chemical mainly responsible for growth and repair?
Protein is the food chemical primarily responsible for growth and repair in the body. It is essential for building and repairing tissues, including muscles, skin, and organs. Consuming an adequate amount of protein in the diet is important for overall health and optimal growth.
What is the protein in the blood that binds oxygen?
Hemoglobin is the protein in the blood that binds to oxygen. It is mainly found in red blood cells and is responsible for transporting oxygen from the lungs to the tissues in the body.
What type of muscle tissue causes vasoconstriction?
Smooth muscle tissue causes vasoconstriction. This type of muscle tissue is found in the walls of blood vessels and is responsible for regulating blood flow by constricting and dilating the vessels.
Contraction of a vessel is called?
Vasoconstriction
Which substance in the blood is responsible for carryingoxygen to the tissues?
Hemoglobin is the substance in the blood responsible for carrying oxygen to the tissues. It is a protein found in red blood cells that binds to oxygen in the lungs and releases it to the body's tissues and organs.
In what vascular tissue is sugar mainly transported?
Sugar is mainly transported in the phloem, which is one of the two types of vascular tissues in plants. The phloem is responsible for the translocation of organic nutrients, particularly sucrose, from sources such as leaves (where photosynthesis occurs) to sinks like roots, fruits, and growing tissues. This transport process is essential for plant growth and energy distribution.
What is the function of the vasomotor center?
vasomotor centre is under medullary control and is responsible for vasoconstriction /vasodilatation so that blood pressure is maintained.
