Integumentary System Flashcards
Respond differently to heat and nervous state and respond to emotional and sensory stimuli.
Sweat Glsnds
Found in the skin of mammals and these glands secrete sebum.
Sebaceous Glands or Oil Glands
Are involved in skin problems such as acne and keratosis pilaris.
Ceruminous Glands
Are organs that, in the female mammal, produce milk for the substance of the young.
Mammary Glands
Act as protective plates over the fingertips and toes.
Nails
Are found in ungulate mammals.
Hoofs
A cylinder of horny material that surrounds and protects the tip of the toe.
Hoofs
Horns are made of an outer ___________ layer.
Keratinized
Antlers are made of?
Bone
Hair consists of the _____, which grows and rises above the skin surface.
Shaft
Hair also consists of the root, which is located in the small _____ within the derma thickness and is anchored into a hair ________.
Fossa, Follicle
Characterized as amphibians, reptiles, aves, and mammals.
Tetra pods
Are transitional between aquatic and terrestrial vertebrates.
Amphibians
Amphibians’ epidermis - Stratified with thin stratum _______ and very little keratin; ______ cells.
Stratum Corneum, Leydig Cells
Amphibians’ epidermis - With chromatophores, poison glands, and mucous glands. Composed of fibrous __________ tissues.
Connective Tissues
Pigment bearing cells.
Chromatophores
Poison glands produces toxins.
Serous Glands
Reptiles’ dermis - Deeper layer of _________ tissue with a rich supply of blood vessels and nerves.
Connective Tissue
Gas exchange and produce watery substance that makes them slimy and protect them against predator.
Mucous Glands
Reptiles’ epidermis - Consists of up to _ layers of closely packed cells.
7 layers
The skins of bony fishes contains ______.
Scales
Concentic ridges sclaes (ex: milkfish).
Cycloid Scales
Scales with spines or ctenii.
Ctenoid Scales
Rhomboid shaped scales.
Ganoid Scales
Extinct fishes dermal armor (type of scale).
Comoid Scales
Scales with spines directed caudally (ex: sharks, skates).
Placoid Scales
The skin is covered with horny teeth-like scales and on the jaws these are modified to form teeth (fishes).
Cartilaginous
Does epidermis coves scales?
No
The simplest of all fishes and vertebrates.
Jawless Fish
Consists of simple columnar cells and thin layer of connective tissue (vertebrate or invertebrate integument?).
Invertebrate Integument
Integumentary system consists of the skin, the feather, and the appendages (claws and beak).
Birds
Some invertebrates possess ________ that are highly variable structure.
Cuticles
Is composed of keratinized, stratified squamous epithelium.
Epidermis
It is made of four or five layers of epithelial cells, depending on its location in the body. It is avascular.
Epidermis
Might be considered the “core” of the integumentary system.
Dermis
It contains blood and lymph vessels, nerves, and other structures, such as hair follicles and sweat glands.
Dermis
It is made of two layers of connective tissue that compose an interconnected mesh of elastin and collagenous fibers, produced by fibroblasts.
Dermis
Also called the subcutaneous layer or superficial fascia.
Hypodermis
Is a layer directly below the dermis and serves to connect the skin to the underlying fascia (fibrous tissue) of the bones and muscles.
Hypodermis
Consists of well-vascularized, loose, areolar connective tissue and adipose tissue, which functions as a mode of fat storage and provides insulation and cushioning for the integument.
Hypodermis
What are the 5 layers of a mammal’s epidermis?
Stratum Corneum, Stratum Lucidum, Stratum Granulosum, Stratum Spinosum, Stratum Basale
