Tissue Connections

3. Nervous tissue cells are called ____ and communicate by electrical and chemical signals.
4. Skeletal muscle is voluntary, while _____ and cardiac muscle are involuntary.
5. Differentiation is when unspecialized embryo tissues become specialized mature tissue, and _______ is when one type of mature tissue changes to another.
7. Merocrine is a mode of secretion which uses exocytosis (the cell throws up). What does the cell do in holocrine secretion?
11. The types of connective tissues are fibrous connective tissue, ¬_____ connective tissue, adipose, supportive connective tissue, and fluid connective tissue.
13. The ____ in tissues are holes that hold chondroblasts in cartilage and osteoblasts in bone.
15. Leukocytes are white blood cells, while _______ are red blood cells.
20. _____ are the rings of compact bone which surround the central canal.
21. Embryonic stem cells are totipotent and pluripotent (able to become any cell), and adult stem cells are multipotent and ______ (limited to a few or one type of cell).
23. Tight junctions prevent ____, while desmosomes prevent tearing, and gap junctions serve as tunnels.

1. _____ are specialized nervous cells that serve, protect, and support.
2. Cancaliculi in compact bone are used by lacunae to _______.
6. Secretions are ____ by the body (hormones), while excretions are expelled from the body (waste, eggs, sperm).
8. Stratified squamous __________ cells provide waterproofing to skin.
9. Exocrine is excreted, while endocrine is ______.
10. Mucus, whole cells, and _____ fluid are all types of secretions.
12. Hormones are secreted by glands made up of _____ tissue.
14. Intercalated discs are found in _____ tissue.
16. _______ membranes are found on the skin, while serous membranes are found in simple squamous epithelium (serous fluid), and mucous membranes lines passages leading outside the body.
17. The _____ surface is touching the tissue underneath.
18. Hyperplasia causes cell growth by increasing the number of cells through _______, while hypertrophy is an enlargement of cells, and neoplasia is tumor growth.
19. The two types of osseous tissue are spongy bone and _____ bone.
22. Hyaline cartilage is found in the ______.
24. Regeneration is the regrowth and repair of normal tissues, while fibrosis is the formation of _____ tissue.