Name:malik Mohammed
Unit 8: physiology of human body systems
B: understand the impact of disorders on the physiology of the lymphatic
system and the associated corrective treatment.
The lymphatic system takes part in the circulatory system and plays an
important role in the immune system, the lymphatic system makes up a
P3
network of lymphatic vessels that transport a clear fluid named lymph towards
the heart.
,P3
Lymphatic system structure function
Lymph nodes Hundreds of small lymph Until lymph returns to the
nodes are spread around bloodstream, lymph nodes
lymphatic vessels with a filter it. Macrophages,
knot of lymphatic tissues; which engulf and remove
they are bean-shaped and forging compounds, and
range in length of 2.5 cm. lymphocytes (b cells and T
cells), which have immune
response to antigens, are
two protective cells found
in lymph nodes.
Lymph vessels They are made up of Its aim is to assist
capillaries, trunks, and lymphatic flow.
ducts and can be seen all
over the body except in
your bones, teeth, and
nervous system. Smooth
muscles propel the flow of
fluid into specific lymph
vessels. The walls of lymph
vessels are thin and
permeable.
Lymphatic ducts In our bodies, we have two They return the lymph
lymphatic ducts: one on fluid to the heart by
the right, called the right draining it.
lymphatic duct, and one on
the left, called the thoracic
duct, which connects to
the veins of the heart.
Thymus They are bi-lobed, with a The thymus gland only
, central medulla and a functions at its best during
peripheral cortex that is childhood; it educates T
densely packed with lymphocytes, maintains
lymphocyte cells in each immunocompetent T
lobe. Chemical messengers lymphocytes, and
are generated by epithelial produces hormones
cells, lymphocytes, and including thymosin to
thymic corpuscles in the support T lymphocytes.
medulla. This organ is
located near the bottom of
the throat, above the
heart.
Spleen Within the spleen, there Its job is to remove worn-
are lymphatic tissues and out blood cells and
red pulp, which are blood- reprocess defective and
filled pockets, and a aged cells, as well as
capsule of connective infectious chemicals,
tissue and smooth muscle viruses, and toxins from
fibres surrounds the the bloodstream. They also
spleen, and a peritoneum serve as a blood reserve,
membrane on the exterior. storing iron and platelets.
They are oval in shape and They're also known for
are the main lymphoid being a location where
gland. They are located in lymphocytes undergo
the centre of your stomach mitosis in order to mount
and diaphragm on the left an immune response.
side of the abdomen.
Tonsils Around the pharynx, there They catch bacteria and
are small volumes of other foreign materials in
lymphoid tissue. the body and kill them.
Peyer's patches were Tonsillitis occurs as
found in the small bacteria get clogged in the
intestine wall, and their throat.
arrangement is similar to In addition, Peyer's
that of tonsils. patches trap and destroy
bacteria in the intestine.
Lacteals They are found in each They absorb dietary fats in
villus of the small intestine our small intestine villi,
and the byproducts of fat
digestion bypass the
Unit 8: physiology of human body systems
B: understand the impact of disorders on the physiology of the lymphatic
system and the associated corrective treatment.
The lymphatic system takes part in the circulatory system and plays an
important role in the immune system, the lymphatic system makes up a
P3
network of lymphatic vessels that transport a clear fluid named lymph towards
the heart.
,P3
Lymphatic system structure function
Lymph nodes Hundreds of small lymph Until lymph returns to the
nodes are spread around bloodstream, lymph nodes
lymphatic vessels with a filter it. Macrophages,
knot of lymphatic tissues; which engulf and remove
they are bean-shaped and forging compounds, and
range in length of 2.5 cm. lymphocytes (b cells and T
cells), which have immune
response to antigens, are
two protective cells found
in lymph nodes.
Lymph vessels They are made up of Its aim is to assist
capillaries, trunks, and lymphatic flow.
ducts and can be seen all
over the body except in
your bones, teeth, and
nervous system. Smooth
muscles propel the flow of
fluid into specific lymph
vessels. The walls of lymph
vessels are thin and
permeable.
Lymphatic ducts In our bodies, we have two They return the lymph
lymphatic ducts: one on fluid to the heart by
the right, called the right draining it.
lymphatic duct, and one on
the left, called the thoracic
duct, which connects to
the veins of the heart.
Thymus They are bi-lobed, with a The thymus gland only
, central medulla and a functions at its best during
peripheral cortex that is childhood; it educates T
densely packed with lymphocytes, maintains
lymphocyte cells in each immunocompetent T
lobe. Chemical messengers lymphocytes, and
are generated by epithelial produces hormones
cells, lymphocytes, and including thymosin to
thymic corpuscles in the support T lymphocytes.
medulla. This organ is
located near the bottom of
the throat, above the
heart.
Spleen Within the spleen, there Its job is to remove worn-
are lymphatic tissues and out blood cells and
red pulp, which are blood- reprocess defective and
filled pockets, and a aged cells, as well as
capsule of connective infectious chemicals,
tissue and smooth muscle viruses, and toxins from
fibres surrounds the the bloodstream. They also
spleen, and a peritoneum serve as a blood reserve,
membrane on the exterior. storing iron and platelets.
They are oval in shape and They're also known for
are the main lymphoid being a location where
gland. They are located in lymphocytes undergo
the centre of your stomach mitosis in order to mount
and diaphragm on the left an immune response.
side of the abdomen.
Tonsils Around the pharynx, there They catch bacteria and
are small volumes of other foreign materials in
lymphoid tissue. the body and kill them.
Peyer's patches were Tonsillitis occurs as
found in the small bacteria get clogged in the
intestine wall, and their throat.
arrangement is similar to In addition, Peyer's
that of tonsils. patches trap and destroy
bacteria in the intestine.
Lacteals They are found in each They absorb dietary fats in
villus of the small intestine our small intestine villi,
and the byproducts of fat
digestion bypass the
