Anatomy (2nd med)

Identify the layer from the picture:

• Stratum basalis

• Stratum spinosum

• Stratum granulosum

• Stratum Lucidum

Which of the following epidermis layer is absent in the thin skin?

• Stratum basalis

• Stratum spinosum

• Stratum granulosum

• Stratum Lucidum

Juxtacrine cell signaling is considered?

• Contact dependent

• Auto immune

• Synapses

• Hormones

People with albinism have a defect in tyrosinase, an oxidase that helps to control skin pigment production. In what epidermal layer is tyrosinase active?

• • Stratum lucidum

• • Stratum granulosum

• • Stratum basale

• • Stratum spinosum

Which of the following statement is not true?

• Keratinocytes protects skin and muscles from heat and chemicals

• papillary region is responsible for the figure prints

• Markel cells are used for touch sensations

• Apoptosis takes place in stratum granulosum

Which structures contain connective tissue, blood vessels, and nerves?

• • Papillary dermis only

• • Papillary and reticular dermis

• • Epidermis, papillary dermis, and reticular dermis

• • Papillary and reticular dermis

Afferent neurons carry nerve impulses from

• CNS to muscles

• CNS to receptors

• receptors to CNS

• effector organs to CNS

All the cranial nerves distributed to structures in head and neck Except .........

• 3ed nerve

• 5th nerve

• 9th nerve

• 10th nerve

The cranial nerve that regulates the heartbeat

• VII

• VIII

• IX

• X

Receptors for steroid hormones and thyroid hormone are present in:

• 1. Cytosol and nucleus respectively 

• 1. Nucleus and cytosol respectively 

• 1. Cytosol and plasma membrane respectively

• 1. Nucleus and plasma membrane respectively