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?
   Answer
   
   
2. What is the difference between connective tissue fibers and muscle fibers?
   Answer
   
   

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.

1. What is the origin of the major ventral body cavities?
   Answer
   
   
2. What type of membrane lines joint cavities?
   Answer
   
   

Essential Study Partner
    Membranes

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.

1. What organ systems are responsible for controlling most of the other body organ systems?
   Answer
   
   
2. Why is the skin considered an organ system?
   Answer
   
   

Essential Study Partner
    Skin and Its Tissues
    Accessory Organs of the Skin
    Regulation of Body Temperature
    Aging

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.

1. What is "negative feedback?"
   Answer
   
   
2. Are there body mechanisms that function by positive feedback?
   Answer
   
   

Essential Study Partner
    Homeostasis