Histology I - Integument, Hair, Sweat Glands, Special Senses

Front 1

sebaceous glands are what kind of glands?

Back 1

Holocrine secretion — the entire cell disintegrates to secrete its substances. They can be simple OR compound alveolar glands

Front 2

mitotically active layer of epidermis

Back 2

stratum germinativum = stratum basale + stratum spinosum

Front 3

part of epidermis located on top of basement membrane

Back 3

stratum basale

Front 4

Merocrine

Back 4

Merocrine glands - cells secrete their substances by exocytosis , form vesicles, so NO part of gland is damages or lost unlike apocrine and holocrine (e.g., mucous and serous glands). Also called "eccrine."

Front 5

Sweat Gland.

Back 5

Apocrine Sweat Gland. A class of large sweat gland, usually located in the groin and armpits, that produces odoriferous secretions.

Front 6

In hypodermis, adipose tissue is present either in the form of small clusters or large mass of fat called _________

Back 6

panniculus adiposus - large mass of fat in hypodermis

Front 7

pilosebaceous unit

Back 7

consists of hair shaft, hair follicle, sebaceous gland which makes sebum, and erector pili muscle which causes the hair to stand up when it contracts.

Front 8

produces the hair itself

Back 8

hair follicle, sac sac from which hair grows and into which sebaceous (oil) glands open. Follicle is lined by cells derived from epidermal (outside) layer of skin.

Front 9

3 layers of hair shaft

which layer contains the pigment

Back 9

cuticle- single layer of flat ker. cells
cortex - dense keratinized, CONTAINS PIGMENT
medulla - loose center, cuboital or flat

Surrounded by hair follicle (internal and external root sheath)

Front 10

2 layers of Dermis (what made of?)

Back 10

Papillary layer: Loose connective tissue.

Reticular layer: Dense irregular connective tissue

Front 11

subcutis

Back 11

aka hypodermis

It consist of loose arrangement of collagen and elastic fibers.

Adipose tissue is present either in the form of small clusters or large mass of fat called panniculus adiposus.

Front 12

subcutis

Back 12

aka hypodermis

It consist of loose arrangement of collagen and elastic fibers.

Adipose tissue is present either in the form of small clusters or large mass of fat called panniculus adiposus.

Front 13

what type of gland (structurally) is mammary gland?

Back 13

compound tubular acinar, lots of branching and duct

i believe its a merocrine gland?

Front 14

Oxytocin causes ___________ to contract and release milk into ________

Back 14

myoepithelial cells to contract, lumen of alveoli

Front 15

Where are merocrine sweat glands found?

Back 15

foot pad of dog and cat

Front 16

another word for 'sweat' gland

Back 16

sudoriferous

Front 17

Epithelium lining ducts of mammary gland?

(hint: must know names of 2 sinuses)

Back 17

Interlobular duct (str. cuboidal)
Intralobular (simple cuboidal)

Lactiferous sinus (stratified cuboidal) – where milk stored

Teat sinus (after Lact.sinus) and papillary duct (final openings) - both are stratified squamous.

Front 18

Bovine planum nasolabiale
Carpal glands of swine.
Foot pad of dogs and cats,

Have what type of glands?

Back 18

merocrine sweat glands

Front 19

Layers of epidermis from outer to inner?

Back 19

Stratum disjunctum
Stratum corneum
Stratum granulosum
Stratum Spinosum
Stratum basale

Front 20

what layers of epidermis contain melanocytes?

Back 20

stratum basale and spinosum

Front 21

only present in non-hairy skin (footpad)

Back 21

Stratum lucidum

Front 22

3 layers of hoof (hard keratin corneal horn)

Back 22

stratum externum
stratum medium
stratum internum
-primary lamina
-secondary lamina
-laminar column

Front 23

sebacious gland - what type gland?

Back 23

simple OR compound alveolar gland

-associated with hair follicles.
-duct empty into hair folllicle thr. pilosebacious canal

Front 24

Responsible for pig (color) of eye

Back 24

Iris, forms circular band around lens

Front 25

Anterior portion of fibrous tunic?

Posterior portion of fibrous tunic?

Back 25

cornea

sclera

Front 26

Sclera structure?

Back 26

on posterior surface of eye

white layer of dense irregular connective tissue.

Bundles of collagen fibers having few elastic fibers

Front 27

cornea of fibrous tunic consists of 5 layers

Back 27

Cornea: is composed of:

1. Anterior epithelium (nonkeratinized stratified squamous epithelium)

2. Subepithelial Basement membrane

3. Substantia propria: collagen fiber layers or lamellae.

4. Posterior limiting membrane (highly refractile thick BM.

5. Posterior epithelium (corneal endothelium) a simple squamous epithelium

Front 28

The _______ is highly vascularized layer of the eye ball.

In the dorsal half of the fundus of the eye ball, the ______ have a light-reflecting area known as ________.

Back 28

choroid (of vascular tunic)
choroid
tapetum lucidum

Front 29

ciliary body is _______ continuation of the _______ in the _________ tunic.

Back 29

ciliary body is rostral continuation
of choriod
in VASCULAR TUNIC

Front 30

vascular tunic comprised of

Back 30

choroid - vascularized, composed of a dense network of blood vessels embedded in the heavily pigmented connective tissue. (which has tapetum lucidum on dorsal surface)


The ciliary body is the rostral continuation of the choroid.

The iris is composed of highly vascularized connective tissue and pigmented epithelium.

Front 31

Layers of Nervous Tunic (retina)

Back 31

The retina is composed of:
1. Pigment epithelium
2. Photoreceptive layer (rods and cones)
3. External limiting membrane
4. Outer nuclear layer
5. Outer plexiform layer
6. Inner nuclear layer
7. Inner plexiform layer
8. Ganglionic cell layer - MPN
9. Optic nerve fiber layer
10. Internal limiting membrane

Front 32

differentiate between different colors

Back 32

cones

Front 33

work during night (dark)

Back 33

rods

Front 34

affected by cataracts

Back 34

lens

Front 35

lacrimal gland

~identify the types of secretion these glands produce, particularly how vary betw. species

Back 35

compound tubulo-alveolar gland

predom. serous in ruminants, serous iin cats and S/M in dogs

Front 36

Middle Ears

Back 36

Auditory ossicles (malleus, incus and stapes),
Tympanic cavity
Auditory tube.

Front 37

Name 2 Main Parts of Inner ear:
(don't need to go into too much detail b/c IE is incredibly complicated)

~must say what flows through these

Back 37

Bony labyrinth: is filled with perilymph.
Membranous labyrinth: is filled with endolymph.
(containing sensory mechanisms - hearing and balance)

Front 38

3 structures responsible for balance
>For Vestibular (balancing) mechanism

Back 38

Crista ampullaris
Macula utriculi
Macula sacculi

Front 39

Structures in IE responsible for balance

Back 39

The vestibular system is dedicated to
Crista ampullaris
Macula utriculi
Macula sacculi

Front 40

cochlea is dedicated to

Back 40

HEARING

Front 41

Structures in IE responsible for hearing

Back 41

Spiral organ (organ of Corti) of hearing

Front 42

bony labyrinth

Back 42

or osseous labyrinth of INNER EAR, is the network of passages with bony walls lined with periosteum. The membranous labyrinth runs inside of the bony labryinth

(i don't know of any unique function bony labryinth has, BUT i contains perilymph while membranous labr. contains endolymph)

Front 43

name 3 membranes of organ of corti

Back 43

tectorial membranne
vestibular membrane
basilar membrane

TVB (B for best)

Front 44

3 Auditory ossicles of middle ear?

Back 44

malleus, incus and stapes