18 Questions
Which structure forms the base of the hair follicle?
Hair root
Which layer of the hair root has densely packed, heavily keratinized cells surrounding the medulla?
Cortex
Which structure contains only the basal and spinous epidermal layers in the nail?
Nail bed
Which gland produces sebum by terminal differentiation of sebocytes and secretes this oily substance onto hair in the follicles?
Sebaceous Glands
Which type of gland produces sweat that is mostly water onto the skin surface, providing an important mechanism for cooling the body?
Eccrine Sweat Glands
Which structure pulls the hair shaft in an erect position?
Arrector Pili Muscle
Which type of cutaneous receptor is primarily responsible for detecting pressure or firm touch?
Lamellated (Pacinian) corpuscles
Which of the following types of cutaneous receptors is known for its responsiveness to light-touch or low-frequency stimuli?
Meissner corpuscles
Where are Krause end bulbs primarily found?
In the skin of the penis and clitoris
Which type of cutaneous receptor is known for its sensitivity to stretch (tension) or twisting (torque) in the skin?
Ruffini corpuscles
Which of the following body parts has minimal hair according to the text?
Glabrous skin of the palms and soles
What is the primary function of epidermal appendages?
To maintain the body’s homeostasis
What is the main function of lamellar granules in the epidermis?
Produce a lipid-rich, impermeable layer around the cells
Which layer of the epidermis consists of polyhedral cells actively synthesizing keratins?
Stratum Spinosum
In which layer of the epidermis do tonofibrils, forming spines between keratinocytes, exist?
Stratum Spinosum
Which type of cells are primarily responsible for providing germinal cells necessary for the regeneration of the epidermal layer?
Keratinocytes
Which layer of the epidermis is characterized by a single layer of cuboidal to low columnar cells in contact with the basement membrane?
Stratum Basale
Which type of epithelium makes up the epidermis?
Stratified Squamous Keratinized
Test your knowledge of the anatomy of hair follicles and roots with this quiz. Learn about the external root sheath, dermal papilla, hair root, medulla, cortex, cuticle, and arrector pili muscle.
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