lab 2 biol 223 bolded terms Flashcards
extracellular matrix is made up of …?
ground substance and protein fiber
what are the types of protein fibers?
collagen, reticular, and elastic fibers
reticular ribers
are very fine and arranged into a branching framework in soft tissues
collagen fibers
are strong and have a rope like structure. They are able to withstand pulling forces in a tissue
elastic fibers
have the ability to stretch and return to their original shape.
fibroblast
“protein-fiber-makers,” responsible for producing the ECM
fluid ct
blood; contains, plasma, erythrocytes, leukocytes, and platelets
supporting ct
consists of bone and cartilage.
cartilage: hyaline, fibrocartilage, and elastic cartilage
CT proper
consists of dense and loose CT
Dense: Dense Regular and Dense Irregular
Loose: Areolar, Adipose, Reticular
areolar CT is found?
- dermis (papillary layer)
-between muscles
-surrounding blood vessels
-surrounding nerves
reticular connective tissue is found?
-lymph nodes
-kidney
-spleen
-liver
-red bone marrow
adipose CT is found?
-hypodermis
-surrounding the eyeballs, the kidneys
-yellow bone marrow
dense regular CT is found…?
-tendons
-aponeroses(?)
-most ligaments
dense irregular CT is found?
-dermis (reticular layer)
-organ capsules
-periosteum
-perichondrium
hyaline CT is found?
-fetal skeleton
-larynx
-trachea
-articular cartilage
elastic cartilage CT is found?
-auricle (outside) of the ear
-epiglottis
fibrocartilage CT is found?
-intravertebral discs
-pubic symphysis
-cartilage pads in knees (meniscus)
dense bone CT is found?
-in the bones
blood CT…
-within blood vessels
-within the chambers of the hear
nervous tissue…
-nervous system
define stroma
“supportive”
what are cartilage cells called?
chondrocytes
what is a lacunae?
spaces that contain chondrocytes.
think restless guy in cement
what are osteons?
also known as haversian systems, they are the circular with a significant amount of matrix with few spaces.
in other words, circle with osteocytes and encompasses a center canal.
what is found in the center of an osteon?
a center canal that contains blood vessels and nerves
what cells are found within lacunae?
osteocytes
what is a perikayron?
the cell body of a nucleus
name the five layers of the epidermis. which is only found in thick skin?
Stratum Corneum
Stratum Granulosum
Stratum Spinosum
Stratum Basale
Stratum Lucidum is only found in thick skin.
what are the two tactile receptors found in the skin?
lamellated (Pacinian) corpuscles
tactile (Meissner’s) Corpuscles
the epidermis is…
a thinner, more superficial layer comprised of a keratinized stratified squamous epithelium.
the dermis is…
a thicker, deeper layer comprised of connective tissue.
