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Skin & Hair Development — Endocrine, Integumentary & Special Sense Development
Embryology Question Bank
Question Bank
Embryology
Endocrine, Integumentary & Special Sense Development
Skin & Hair Development
Embryology Question Bank
Skin & Hair Development
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Skin & Hair Development MCQs: practice questions
Sample Skin & Hair Development multiple-choice questions from Endocrine, Integumentary & Special Sense Development.
What is known about the embryonic origin of Merkel cells according to the source?
- A. They are definitely neural crest-derived
- B. They are definitely endoderm-derived
- C. They arise from melanoblasts
- D. Their origin is uncertain
- E. They are definitely mesoderm-derived
When are lanugo hairs typically sloughed off?
- A. At age 3 years
- B. At birth
- C. At week 20
- D. At week 12
- E. At puberty
What temporary superficial layer develops over the early epidermis?
- A. Stratum corneum
- B. Dermis
- C. Periderm
- D. Stratum lucidum
- E. Hair cuticle
What is the embryonic origin of the epidermis?
- A. Endoderm
- B. Intermediate mesoderm
- C. Neural crest
- D. Ectoderm
- E. Mesoderm
What is the embryonic origin of dermis in the head and neck?
- A. Endoderm
- B. Intermediate mesoderm
- C. Surface ectoderm
- D. Somitic mesoderm only
- E. Neural crest cells
Which cells produce melanin in the epidermis?
Which muscle develops from mesodermal cells surrounding the hair follicle?
What is the embryonic origin of nails?
Where do nails first develop?
Which epidermal layer is the most superficial mature layer?
What pigment-containing organelles are observed in melanocytes by mid-pregnancy?
What are the first fine fetal hairs called?
What is the earliest cellular organization of the embryonic epidermis?
Into which epidermal region do melanoblasts migrate?
What structure contains the proliferative epithelial cells that form the hair shaft?
What developmental defect underlies alopecia?
What structure of mesoderm invaginates the hair bulb?
Which structure forms the dermal root sheath around the hair follicle?
Which hair abnormality is frequently associated with spina bifida occulta?
What is a major component of vernix caseosa?
What is the club-shaped lower end of the developing hair follicle called?
At what week do cells from the stratum basale grow into the dermis to form hair follicles?
Which hair-follicle layer is continuous with the epidermis?
What is the embryonic origin of melanoblasts?
What is the principal function of Langerhans cells in the epidermis?
Which epidermal layer is mitotically active?
What is the embryonic origin of Langerhans cells?
What is the embryonic origin of the dermis beneath the body surface?
Which structure forms the internal root sheath of hair?
What is the embryonic origin of hair?