What is the exocrine gland?
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Glands that secrete products into ducts that open onto surfaces, such as the
skin or the lining of the digestive tract
,Describe the components of blood
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plasma, red blood cells, white blood cells, platelets
Where can lymph nodes be found in the body and what is the structure of a lymph
node?
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Lymphatic organs: Cervical region, axillary region, supratrochlear region,
inguinal region, pelvic cavity, abdominal, and thoracic.
Lymph nodes are usually bean-shaped, <2.5cm long. Located along lymphatic
vessels; filter pathogens from lymph. Contain lymphocytes to attach viruses,
bacteria, and parasitic cells.
Contain macrophages to engulf and destroy foreign susbtances, damages
cells, and cellular debris.
How does stress affect immunity
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With chronic stress, the immune system stays in low gear, leaving the body
vulnerable to infection and disease. Basically, it suppresses it.
, Describe non-steroid hormones and their mechanism of action
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Amines, proteins, peptides, and glycoproteins. The endocrine gland secretes
nonsteroid hormones, which body fluid carries hormone to its target cell.
Hormone combines with receptor site on membrane of its target cell,
activating G protein. Adenylate cyclase molecules are activated in cell's
membrane. Adenylate cyclase circularizes ATP into cyclic AMP. Cyclic AMP
activates protein kinases. Protein kinases activate protein substrates in the cell
that change metabolic processes. Cellular changes produce the hormone's
effects.
Where is the heart located?
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mediastinum, between lungs
Understand the role of negative feedback in control of hormone secretions
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A control mechanism in which rising level of a hormone leads to a decrease in
hormone secretion
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Glands that secrete products into ducts that open onto surfaces, such as the
skin or the lining of the digestive tract
,Describe the components of blood
Give this one a try later!
plasma, red blood cells, white blood cells, platelets
Where can lymph nodes be found in the body and what is the structure of a lymph
node?
Give this one a try later!
Lymphatic organs: Cervical region, axillary region, supratrochlear region,
inguinal region, pelvic cavity, abdominal, and thoracic.
Lymph nodes are usually bean-shaped, <2.5cm long. Located along lymphatic
vessels; filter pathogens from lymph. Contain lymphocytes to attach viruses,
bacteria, and parasitic cells.
Contain macrophages to engulf and destroy foreign susbtances, damages
cells, and cellular debris.
How does stress affect immunity
Give this one a try later!
With chronic stress, the immune system stays in low gear, leaving the body
vulnerable to infection and disease. Basically, it suppresses it.
, Describe non-steroid hormones and their mechanism of action
Give this one a try later!
Amines, proteins, peptides, and glycoproteins. The endocrine gland secretes
nonsteroid hormones, which body fluid carries hormone to its target cell.
Hormone combines with receptor site on membrane of its target cell,
activating G protein. Adenylate cyclase molecules are activated in cell's
membrane. Adenylate cyclase circularizes ATP into cyclic AMP. Cyclic AMP
activates protein kinases. Protein kinases activate protein substrates in the cell
that change metabolic processes. Cellular changes produce the hormone's
effects.
Where is the heart located?
Give this one a try later!
mediastinum, between lungs
Understand the role of negative feedback in control of hormone secretions
Give this one a try later!
A control mechanism in which rising level of a hormone leads to a decrease in
hormone secretion
