Flashcards in List #4 Deck (50)
- A thin, extracellular layer that anchors epithelium to underlying connective tissue.
-The superficial layer on top of the epithelium
-The surface above the dermis but under the epithelium
- Microscopic hair like extensions of the exposed surfaces of most cells
- Cells specialized for absorption typically have many tiny, cylindrical processes, called microvilli, extending from their free surfaces.
stratified squamous epithelium
-Description: many layers, top cells flattened
-Location: linings of oral cavity, vagina, and anal cavity
simple columnar epithelium
-Description: single layer, elongated cells
-Function: Protection, secretion, absorption
-Location: Lining of the stomach and small intestines
stratified columnar epithelium
-Description: Top layer of elongated cells, lower layers of cube-shaped cells
-Function: protection, secretion
-Location: male urethra, linings of larger ducts of excretory glands
-Glands that secrete their products into ducts that open onto surfaces, such as the skin or the lining of the digestive tract.
-Glands that secrete their products into tissue fluid or blood
-Histiocytes, originate as white blood cells and are almost as numerous as fibroblasts in some connective tissues.
-The most common type of fixed cell in connective tissue.
-Large, star-shaped cells produce fibers by secreting proteins into the extracellular matrix of connective tissues.
-Large and widely distributed in connective tissues, where they are usually near blood vessels.
-They release heparin, a compound that prevents blood clotting.
-They also release histamine, which promotes some of the reactions associated with inflammation and allergies
-Description: cells in fluid-gel matrix
-Function: protects, insulates, and stores fat
-Location: beneath the skin, around the kidneys, and on the surface of the heart
-Description: cells in solid-gel matrix
-Function: supports, protects, provides flexible framework
- They divide and are crucial to the functioning of neurons
- These cells support and bind the components of nervous tissue, carry on phagocytosis, and help supply growth factors and nutrients to neurons by connecting them to blood vessels.
- Composed of stratified squamous epithelium, it is the outer layer
- The inner layer, it is thicker than the epidermis and is made up of connective tissue containing collage and elastic fibers, smooth muscle tissue, nervous tissue, and blood
- Beneath the dermis, masses of areolar and adipose tissues bind the skin to underlying organs. These tissues are not part of the skin
- Specialized cells in the epidermis that produce the pigment melanin from the amino acid tyrosine in organelles
- proteins produced as epidermal cells die and harden
- They fuse together the parietal bones
- The occipital bone joins the parietal bones along the lambdoid suture.
- The parietal bones are fused at the midline along the sagittal suture, and they meet the frontal bone along the coronal suture.
- A temporal bone on each side of the skull joins the parietal bone along this suture.
- The opening between the temporal and occipital bones, it accommodates the internal jugular vein
- Projecting upward into the cranial cavity between eh cribriform plates is a triangular process of the ethmoid bone.
-Membranes that enclose the brain attach to this process
superior orbital fissures
- Found in the sphenoid bone
- Contains cranial cavities 3 oculomotr,4 trochlear,5 trygeminal(ophthalmic branch), and 6 abducens
-Found in the sphenoid bone on the lesser wings
- Contains cranial cavity 2 optic nerves.