A&P 1 Cells

A needle would pierce the epidermal layers of the forearm in which order?

• Granulosum, nasals, spinosum, corneum

• Basale, spinosum, granulosum, lucidum, corneum

• Basale, spinosum, Granulosum, corneum

• Corneum, granulosim, spinosum, basale

A splinter penetrated into the skin of the sole of the foot almost to the papillary region of the dermis. Which layer of the epidermis would be the final layer injured?

• Basale

• Lucidum

• Granulosum

• Spinosum

Which of the following cutaneous receptors is specialized for the reception of touch of light pressure?

• Free nerve endings

• Pacinian corpuscles

• Krause’s end bulbs

• Meissner’s corpuscles

The reason the hypodermics acts as a shock absorber is that ______.

• The cells that make up the hypodermic secrete a protective mucus

• It has no delicate nerve endings and can therefore absorb more shock

• It is located just below the epidermis and protects the dermis from shock

• The major part of its makeup is adipose, which serves as an effective shock absorber

Which of the following describes the plasma membrane

• a double layer of protein enclosing the membrane

• a single layered membrane that surronds the nucleus of the cell

• the phospholipid bilayer surrounding the cell

• a membrane composed of tiny shelves or cristae

which type of cell junction acts as anchor and distributes tension through a cellular sheet and reduces the chnace of tearing when it is subjected to great mechanical stress?

• Desmosomes

• tight junctions

• gap junctions

• connexons

which of the following would not be a constituent of a plasma membrane?

• glycolipids

• messengar RNA

• glycoproteins

• phospholipids

Which of the following is a function of a plasma membrane protein?

• forms a lipid bilayer

• oxygen transport

• circulating antibody

• molecular transport through the membrane

Which of the following is not a factor that binds cells together?

• wavy contours of the membranes of adjacent cells

• glycoproteins in the glycocalyx

• glycolipids in the glycocalyx

• special membrance junctions

which of the following is a principle of the fluid mosaic model of cell membrane structure?

• all proteins associated with the cell membrane are contained in a fluid layer on the outside of the cell

• the lipid bilayer is a solid at body temperature, thus protecting the cell

• phospholipids consist of a polar head and a nonpolar tail made of three fatty acid chains

• phospholipids form a bilayer that is largely impermeable to water- soluble molecules