Integument, lymphatics Flashcards
The five functions of the skin are
protection, containment, heat regulation, sensation, synthesis and storage of vitamin D
The layers of the skin from outside to inside are
Epidermis, dermis, subcutaneous tissue, deep fascia, skeletal muscle
What kind of epithelium is the epidermis?
A keratinized stratified epithelium
The dermis is formed by which fibers?
Collagen and elastic fibers
Which muscle erects the hairs on the skin?
The arrector muscles
The subcutaneous tissue is composed of
loose connective tissue and fat
Skin ligaments connect the
deep fascia with the dermis
The deep fascia is what kind of tissue
A dense, organized connective tissue without fat
The deep fascia forms retinacula and bursae, what is their function?
Retinacula hold tendons in place during joint movement, bursae prevent friction and enable structures to move over one another
What are the mammary glands?
modified sweat glands
The breast lobules are drained by
lactiferous ducts
The mammary glands are attached to the dermis by
suspensory ligaments
The arterial supply of the breast is from the following three vessels;
subclavian artery, axillary artery, posterior intercostal arteries
The venous drainage of the breast happens through which two vessels
the axillary vein and internal thoracic vein
The majority of lymph of the breast drains to the …
axillary lymph nodes
What does the lymphoid system collect?
Surplus extracellular tissue fluid as lymph
What is the function of lymph nodes
In the lymph nodes, the lymph is filtered before entering the venous system
What are lymphocytes?
Lymphocytes are circulating cells of the immune system that react against foreign matter
Name two lymphoid organs
Spleen, thymus
Name the two lympathic trunks
The right lymphatic duct, and the thoracic duct
Which part of the body is drained by the right lympathic duct?
The body’s right upper quadrant (head, neck, thorax, upper limb)
Which part of the body is drained by the thoracic duct?
Everything except the right upper quadrant
Name two functions of the lymph system that are not the drainage of lymph
Absorption and transport of dietary fat
Formation of a defense mechanism for the body
