| Question |
Answer |
| What are 3 characteristics of connective tissue proper? |
Few cells; Lots of matrix; Fibers inbetween cells |
| What are the 3 types of fibers in connective tissue proper? |
Elastic; Reticular; Collagen |
| What is the main function of connective tissue proper? |
It is mechanically involved in tying pieces together, connecting them, and holding them together. |
| What is ground substance? |
The matrix of connective tissue that is mostly made of glycoproteins. |
| What is a fibroblast? |
The most common connective tissue cell. It produces fibers and the matrix. |
| What are macrophages? |
Cells that find and eat infection and other debris. |
| What are mast cells? |
White blood cells in connective tissue that play a role in the immune system response of the body. |
| What are plasma cells? |
Cells that produce antibodies in the connective tissue proper. |
| What is dense connective tissue? |
Tissue that has many fibers. It is made for areas that take a lot of stress. |
| What is loose connective tissue? |
Tissue that does NOT have many fibers. It is made for areas that DO NOT take a lot of stress. |
| What is regular connective tissue? |
Tissue that has fibers all going in one direction. |
| What is irregular connective tissue? |
Tissue that has fibers going in many different directions. |
| Describe loose, irregular connective tissue. |
Fibers go in all directions; Found under the skin; AKA 'areolar tissue' |
| What is adipose tissue? |
Nucleus always squashed to one side; Made of fibroblasts and lipid (fat) molecules; Where the body stores excess nutrients |
| What are the two basic types of bone tissue? |
Dense or compact bone and cancellous or spongy bone |
| What are trabeculae? |
A network of interconnected plates in the cancellous bone that serve as a supporting lattice. |
| What are lamellae? |
Concentric rings of bone that are in haversian systems and made by osteocytes. |
| Define osteocytes. |
Bone cells |
| What are erythrocytes? |
Red blood cells |
| What are the 4 elements found in blood? |
Erythrocytes (red blood cells); Leukocytes (white blood cells); Thrombocytes (platelets); Plasma |
| What is a platelet? |
A packet of chemicals surrounded by a cell membrane that has been pinched off of a megakaryocyte. |
| What is a megakaryocyte? |
A very large cell located in bone marrow that is responsible for creating thrombocytes. |
| What are the two types of cells in nervous tissue? |
Neurons and neuroglia |
| Structurally, what are the 3 basic parts of a neuron? |
Cell body or perikaryon; Processes (2 types); Myelin sheath |
| What are the two possible process of a neuron? |
Axons and dendrites |
| What is the function of an axon? |
It carries nerve impulses away from the neuron's cell body. |
| what is the function of a dendrite? |
It carries nerve impulses to the neuron's cell body. |
| What is the myelin sheath? |
A layer of lipid material that surrounds a nueron's process and is produced by neuroglia cells. |
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