Tissues Flashcards Preview

A&P Lab > Tissues > Flashcards

Flashcards in Tissues Deck (21)
Loading flashcards...
1

Simple squamous:

Epithelium
Function: Allows materials to pass by diffusion and filtration in sites where protection is not important; secretes lubricating substances in serosae.
Location: Kidney glomeruli; air sacs of lungs; lining of heart, blood vessels, and lymphatic vessels; lining of ventral body cavity (serosae).

2

Simple cuboidal:

Epithelium
Function: Secretion and absorption.
Location: Kidney tubules; ducts and secretory portions of small glands; ovary surface.

3

Simple columnar:

Epithelium
Function: Absorption; secretion of mucus, enzymes, and other substances; ciliated type propels mucus (or reproductive cells) by ciliary action.
Location: Nonciliated type lines most of the digestive tract (stomach to rectum), gallbladder, and excretory ducts of some glands; ciliated variety lines small bronchi, uterine tubes, and some regions of the uterus.

4

Pseudostratified columnar:

Epithelium
Function: Secrete substances, particularly mucus; propulsion of mucus by ciliary action.
Location: Nonciliated type in males’ sperm-carrying ducts and ducts of large glands; ciliated variety lines the trachea, most of the upper respiratory tract.

5

Stratified squamous:

Epithelium
Function: Protects underlying tissues in areas subjected to abrasion.
Location: Nonkeratinized type forms the moist linings of the esophagus, mouth, and vagina; keratinized variety forms the epidermis of the skin, a dry membrane.

6

Transitional:

Epithelium
Function: Stretches readily, permits stored urine to distend urinary organ.
Location: Lines the ureters, bladder, and part of the urethra.

7

Areolar:

Loose connective tissue
Function: Wraps and cushions organs; its macrophages phagocytize bacteria; plays important role in inflammation; holds and conveys tissue fluid.
Location: Widely distributed under epithelia of body, e.g.,forms lamina propria of mucous membranes; packages organs; surrounds capillaries.

8

Adipose:

Loose connective tissue
Function: Provides reserve food fuel; insulates against heat loss; supports and protects organs.
Location: Under skin in subcutaneous tissue; around kidneys and eyeballs; within abdomen; in breasts.

9

Reticular:

Loose connective tissue
Function: Fibers form a soft internal skeleton (stroma) that supports other cell types including white blood cells, mast cells, and macrophages.
Location: Lymphoid organs (lymph nodes, bone marrow, and spleen).

10

Dense regular:

Dense connective tissue
Function: Attaches muscles to bones or to muscles; attaches bones to bones; withstands great tensile stress when pulling force is applied in one direction.
Location: Tendons, mostligaments, aponeuroses.

11

Dense irregular:

Dense connective tissue
Function: Withstands tension exerted in many directions; provides structural strength.
Location: Fibrous capsules of organs and of joints; dermis of the skin; submucosa of digestive tract.

12

Hyaline cartilage:

Connective tissues
Function: Supports and reinforces; serves as resilient cushion; resists compressive stress.
Location: Forms most of the embryonic skeleton; covers the ends of long bones in joint cavities; forms costal cartilages of the ribs; cartilages of the nose, trachea, and larynx.

13

Elastic cartilage:

Connective tissues
Function: Maintains the shape of a structure while allowing great flexibility.
Location: Supports the external ear (pinna); epiglottis.

14

Fibrocartilage cartilage:

Connective tissues
Function: Tensile strength allows it to absorb compressive shock.
Location: Intervertebral discs; pubic symphysis; discs of knee joint.

15

Bone:

Connective tissue(osseous)
Function: Supports and protects (by enclosing);provides levers for the muscles to act on; stores calcium and other minerals and fat; marrow inside bones is the site for blood cell formation(hematopoiesis)
Location: Bones.

16

Blood:

Connective tissue
Function: Transport respiratory gases, nutrients, wastes, and other substances.
Location: Contained within blood vessels.

17

Skeletal muscle:

Muscle tissues
Function: Voluntary movement; locomotion; manipulation of the environment; facial expression; voluntary control.
Location: In skeletal muscles attached to bones or occasionally to skin.

18

Cardiac muscle:

Muscle tissues
Function: As it contracts, it propels blood into the circulation; involuntary control.
Location: The walls of the heart.

19

Smooth muscle:

Muscle tissues
Function: Propels substances or objects (food stuffs, urine, a baby) along internal passageways; involuntary control.
Location: Mostly in the walls of hollow organs.

20

Nervous tissue

Nervous tissue
Function: Neurons transmit electrical signals from sensory receptors and to effectors(muscles and glands); supporting cells support and protect neurons.
Location: Brain, spina lcord, and nerves.

21

Spongy bone

connective tissue
function: produces blood cells
location: ends of long bones and in the bones of the pelvis, ribs, vertebrae, and skull