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11.1 Types of Tissues
Animal tissues can be categorized into four major types: epithelial, connective, muscular, and nervous tissues.

Epithelial tissues line body cavities and cover surfaces.

Connective tissues protect, support, and bind other tissues.

Muscular tissues make body parts move.

Nervous tissues coordinate the activities of the other tissues and body parts.
1. What is a "basement membrane" and what is its function?

2. What is the difference between connective tissue fibers and muscle fibers?
Essential Study Partner
Body Organization
Introduction to Tissues
Epithelial Tissue
Epithelial Glands
Connective Tissue
Nervous Tissue
Muscle Tissue

General Biology Weblinks
Anatomy & Physiology
11.2 Body Cavities and Body Membranes
The internal organs occur within cavities lined by membranes that also cover the organs themselves.
3. What is the origin of the major ventral body cavities?

4. What type of membrane lines joint cavities?
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Labeling Exercise
Mammalian Body Cavities (26.0K)
11.3 Organ Systems
Organs are grouped into organ systems, each of which has specialized functions.

The skin contains various tissues and has accessory organs. It is sometimes called the integumentary system.
5. What organ systems are responsible for controlling most of the other body organ systems?

6. Why is the skin considered an organ system?
Essential Study Partner
Skin and Its Tissues
Accessory Organs of the Skin
Regulation of Body Temperature

Labeling Exercises
Human Skin Anatomy (Skin Layers) (41.0K)
Human Skin Anatomy (2) (44.0K)
Human Skin Anatomy (3) (43.0K)
11.4 Homeostasis
Humans have a marked ability to maintain a relatively stable internal environment. All organ systems contribute to homeostasis.
7. What is "negative feedback?"

8. Are there body mechanisms that function by positive feedback?
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Inquiry into LifeOnline Learning Center with Powerweb

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