Histo lab 7,8: Integumentary and Endocrine System Quiz7

Identify the layer of the skin

Epidermis

Identify the layer of the skin

Dermis

Identify the type of skin

Thick skin

Identify the type of skin

Thin skin

Identify the layer of the skin

Stratum Basale

Identify the specific layer

Stratum basale

Identify the specific layer

Stratum basale

Identify the specific layer

Stratum spinosum

Identify the specific layer

Stratum spinosum

Identify the specific layer

Stratum granulosum

Identify the specific layer

Stratum granulosum

Identify the specific layer (RED ARROW)

Stratum granulosum

Identify the specific layer

Stratum granulosum

Identify the specific layer

Stratum lucidum

Identify the specific layer

Stratum corneum

Identify the specific layer

Stratum corneum

Identify the specific layer

Stratum corneum

Identify the specific layer

Papillary dermis

Identify the specific layer (YELLOW ARROWS)

Papillary dermis

Identify the specific layer

Papillary dermis

Identify the specific layer

Reticular dermis

Identify the specific layer

reticular dermis

Identify the specific layer

reticular dermis

Identify the specific layer

hypodermis

Identify the cells

at border of stratum basale

Keratinocytes

Identify the cells

Melanocytes

Identify the cell

keratinocyte

Identify the cell

melanocyte

Identify the cells

melanocytes

Identify the cell

melanocyte

Identify the structure

Hair shaft

Identify the structure

Hair follicle

Identify the structure

Dermal papilla of hair follicle

Identify the structure

Sebaceous gland

Identify the structure

Arrector pili muscle

Identify the structure

Sebaceous glands

Identify the structure

secrete sebum → hair follicle via holacrine secretion

Sebaceous glands

Identify the structure

Hair shaft

Identify the structure

hair follicle

Identify the structure

forms hair shaft

Hair bulb

Identify the structure (red box)

Hair root

Identify the structure (green line)

Hair root

Identify the structure (Blue line)

Hair bulb

Identify the structure (purple line)

Dermal papilla of hair follicle

Identify the structure

Dermal papilla of hair follicle

Identify the structure

Sebaceous gland

Identify the structure

Sebaceous gland

Identify the structure

arrector pili muscle

Identify the structure

Arrector pili muscle

Identify the structure

Dermal papilla of papillary dermis

Identify the structure (YELLOW)

Sebaceous glands

Identify the structure (BLACK)

Hair follicle

Identify the structure (GREEN)

Eccrine sweat gland

Eccrine glands occur over most of body and open directly onto skin surface except in lips and ___ skin and part of external genitalia

glabrous

what are the two types of sweat glands?

eccrine and apocrine sweat glands

which sweat gland type has the apical portion of the secretory cell cytoplasm shed into the lumen, whose protein/lipid-rich secretions become functional at puberty to play a role in human body odor and pheromonal signaling?

Apocrine sweat glands

which sweat gland type is responsible for the exocytosis of watery sweat with no loss of cellular cytoplasm?

**(merocrine)

eccrine sweat glands

Identify the structure (RED)

Apocrine sweat gland

Identify the structure

Apocrine sweat gland

which sweat gland type opens into hair follicle, leading to surface of skin (axilla, areola, nipple of mammary gland, skin around anus & external genitalia)?

apocrine sweat gland

Identify the structure

Nail plate

Identify the structure

Nail bed

Identify the structure

in the dermal papilla of dermis - for light touch/textures

Meissner's Touch corpuscle

Identify the structure (2)

1 - stratum basale

Meissner’s Touch corpuscle

Identify the structure

Pacinian corpuscle

which corpuscle is found in the reticular dermis and hypodermis and is for coarse touch, preassure, & vibration?

pacinian corpuscle

Identify the structure

Pacinian corpuscle

Identify the structure

Pacinian corpuscle

Identify the organ

Pituitary gland

Identify the organ

~unmyelinated

posterior pituitary gland

Identify the organ

Anterior pituitary gland

Identify the cells

Acidophils

Identify the cells

Basophils

Identify the region of the organ

Adenohypophysis

Identify the cells

chromophobes

Identify the region of the organ

~responsible for synthesis of own hormones

adenohypophysis

Identify the cell

Basophil

Identify the cell

Acidophil

Identify the region of the organ

Neurohypophysis

the posterior pituitary is also known as what? why?

neurohypophysis; it’s pars nervosa

the neurohypophysis has axons from the _______ that release _____ into the pars nervosa

hypothalamus, hormones

neurohypophysis’ neurosecretory cells secrete what?

ADH and oxytocin

what type of glial cells surround the axons in the neurohypophysis?

pituicytes

what occurs in the ventral portion of the neurohypophysis where it’s capillary rich?

most hormone release

Identify the organ

Pituitary gland

Identify the region of the organ (1)

adenohypophysis

Identify the region of the organ (2)

bottom image: notice colloid-filled cyst on (#2; top image) of the anterior lobe

pars intermedia

Identify the region of the organ (3)

(pars nervosa)

Neurohypophysis

Identify the cells

Pituicytes

Identify the organ

Pineal gland

Identify the cells (1)

(synthesize & secrete melatonin)

pinealocytes

Identify the structure (2)

[calcium salt]; accumulates with age

brain sand

brain sand AKA

Copora arenacea

Identify the organ

Pineal gland

Identify the organ

Thyroid gland

the thyroid gland is a bi-lobed endocrine gland surrounded by CT with two types of secretory cells called ______ &______ cells.

• Which makes up most of the thyroid cells ? —(hollow balls)

  • what do they contain? (acidophilic gelatinous)

follicular, parafollicular; follicular cells; colloid

Identify the organ (red square)

Thyroid gland

Identify the structure

thyroid gland

thyroid follicle

Identify the substance

Colloid

Identify the cells

follicular cells