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Tissue and fluids

302.3 Vet nursing Basic Tissue Types and Body Fluids

QuestionAnswer
A collection of cells and their products in which one type of cell predominates Tissue
A collection of tissues forming a structure within an animal Organ
A collection of organs and tissues related by function System
Tissue type which protects the body Epithelium
Tissue type which binds the tissues together Connective
Tissue type which brings about movement Muscle
Tissue type which conveys nerve impulses Nervous
4 Functions of epithelial tissue Protection, Transport, Lining/Absorption, Secretion
5 types of epithelium tissue Simple, Ciliated, Stratified, Transitional and Glands
Epithelium that is only one cell thick. May be squamous, cuboidal or columnar. Simple epithelium
Simple epithelium where the cells are square or cube shaped. Lines glands and ducts. (examples) Simple cuboidal epithelium (renal tubules)
Simple epithelium where the cells are flattened. Lines surfaces that need to be easily permeable. (examples) Simple squamous epithelium (capillaries + alveoli)
Simple epithelium where the cells are column shaped. Lines organs with secretion or absorptive functions. (examples) Simple columnar epithelium (intestines)
Epithelium that is covered in small hair-like projections. (examples) Ciliated epithelium (bronchi + fallopian tubes)
Epithelium that consists of more than one layer of cells. (examples) Stratified epithelium (epidermis of the skin)
Epithelium that can change its shaped according to circumstances. (examples) Transitional epithelium (bladder, ureters + larger blood vessels)
Modified epithelial cells that produce and secrete a substance. (milk, sweat and hormones) Glands
What is an unicellular gland? Individual secretory cells interspersed throughout the tissue (goblet cell)
What is a multicellular gland? Many secretory cells folded to form more complex glands. (sweat glands, mammary)
What is an exocrine gland? Has a system of ducts through which the products are transported directly to the site where they are needed. (Pancreas, sweat,tears)
What is an endocrine gland? Their secretions (known as hormones) are carried by the blood to their target organ.
7 types of connective tissue. Blood, Haemopoetic, Areolar (loose), Adipose (fatty), Fibrous (dense), Cartilige, Bone
The jelly like connective tissue that forms bone marrow within the long bones and responsible for formation of blood cells. Haemopoetic connective tissue
Connective tissue of many cells in a loose irregular network of collagen and elastic fibers. Subcut layer of skin, between organs and around blood vessels and nerves. Areolar connective tissue (loose connective tissue)
Connective tissue which is similar to areolar tissue but contains mainly fat-filled cells closely packed together. Adipose connective tissue (Fatty connective tissue)
Connective tissue made of mainly collagen and elastic fibers. Can be regular or irregular. Fibrous connective tissue (Dense connective tissue)
Where will you find dense regular connective tissue? Forms ligaments and tendons.
Where will you find dense irregular connective tissue? Forms joint capsules, sheaths surrounding muscle tissue, covers liver and spleen and dermis of skin.
A supporting connective tissue that is rigid but flexible. Made of chondrocytes and fibers in a gel like substance. Cartilage
3 types of cartilage? Hyaline, Elastic, Fibrocartilage
Where is hyaline cartilage found? Articular surface of joints, nose, larynx, trachea and bronchi. Also embryo skeleton before ossification.
Where is elastic cartilage found? External ear and epiglottis. Places where flexibility is needed.
Where is fibrocartilage found? Intervertabral discs and menisci of stifle joint. Attaches tendons and ligaments to bone.
Bone cells Osteocytes
Spaces in which bone cells are trapped Lacunae
Extracellular matrix of the bone is made from? Osteonectin and collagen fibers
Name for the extracellular matrix in the bone Osteoid
Fine channels that run though the osteoid, carrying blood vessels and nerves Haversian canals
Cylinders of matrix material surrounding the Haversian canals in bones Lamellae
Fibrous membrane covering the outer surface of all bone types Periosteum
Outer layer or cortex of all bone types. Solid and hard. Compact bone
Ends of long bones and core of short, irregular and flat bones Spongy bone (cancellous)
3 types of muscle in the body Skeletal, smooth, cardiac
Muscle attached to the skeleton that brings about movement and the only muscle which is under voluntary control Skeletal muscle (striated)
Muscle controlled by the autonomic nervous system Smooth muscle
Muscle only found in the heart. Mix of striated and cylindrical muscle shapes. Cardiac muscle
Muscle is made up of bundles of? Myofibrils
Myofibrils are made of? Actin (thin) and myosin (thick) filaments
Body fluid found inside the cells. 40% of body weight Intracellular fluid (cytoplasm)
Body fluid found outside the cells. 20% of body weight Extracellular fluid (plasma, lymph, CSF and interstitial)
Normal pH of the body and its fluids 7.35
Created by: 18000305