Connective Tissues/Epithelial Tissues
What type of epithelial cell is found inside the mouth and on the surface of the skin?
Stratified squamous
Where does bone growth during adolescence occur in a long bone?
Secondary site of ossification/epiphyseal plate
What is an immature muscle cell called and what does it develop into?
Myoblast, myocyte, myotube and myofiber (cell)
What type of neurons carry sensory information to the CNS and where are their nuclei found?
Afferent unipolar neurons and nuclei found in DRG
What is the top layer of epidermis (closest to external environment)?
Stratum corneum
Transitional epithelium is found where in the body?
Urinary bladder
What happens to the chrondoblasts during endochondral ossification?
They hypertrophy and die
What are the components of a myofibril?
Actin and myosin
What is the order of organization of roots, rami and spinal nerves starting with the spinal cord?
Roots, spinal nerves, rami
How is epidermal pigmentation determinedHow is epidermal pigmentation determined
The amount of melanin produced by melanocytes
What are the three major categories of connective tissues?
Connective tissue proper, fluid connective tissue, and supporting connective tissue.
What is an osteon and where is it found?
It is concentric rings of osteocytes in lacunae, connected by caniculli around a central canal. Found in compact bone.
At rest, active sites on the actin are blocked by which molecule?
Tropomyosin
Where in the CNS is the gatekeeper of information to the higher level functioning centers of the brain?
Diencephalon
Which epidermal layer is NOT found in thin skin?
Stratum lucidum
Where is dense irregular connective tissue found in the body?
Perichondrium, periosteum, epimysium
Elevated levels of calcium ion in the blood stimulate the secretion of the hormone
Calcitonin
Active sites on the actin become available by which event happening?
Calcium binds troponin
What are the three places a presynaptic neuron of the sympathetic nervous system can communicate with a postsynaptic cell?
Sympathetic chain ganglion, collateral ganglion or adrenal medulla
Which glands produce sebum or oil and WHAT is its function?
Sebaceous glands, acts as an antimicrobial and keeps the skin from drying out.
What are the three categories of loose connective tissue proper?
Reticular, areolar and adipose
What are the differences between endochondral and membranous ossification?
Membranous ossification directly forms osteoblasts from mesenchyme where endochondral ossification forms chondroblasts and chondrocytes that hypertrophy and die and then osteoblasts come in to ossify the cartilage template.
What are the main events when an action potential arrives at an NMJ?
Where would you find the red nuclei and substancia nigra?
Midbrain
Which layer of the epidermis the last living layer and which two layers is it in between?
Stratum granulosum, stratum spinosum underneath and stratum corneum above