Basics
Animal Nutrition and the Digestive System
Figure 15.1. For humans, fruits and vegetables are important in maintaining a balanced diet. (credit: modification of work…
July 14, 2021 · Rajil TLBasics
Basics
Neural Control of Thermoregulation
The nervous system is important to thermoregulation, as illustrated in Figure 14.23. The processes of homeostasis and temperature control are…
July 14, 2021 · Rajil TL
Basics
Endotherms and Ectotherms
Animals can be divided into two groups: some maintain a constant body temperature in the face of differing…
July 14, 2021 · Rajil TL
Basics
Negative Feedback Mechanisms
Any homeostatic process that changes the direction of the stimulus is a negative feedback loop. It may either increase…
July 14, 2021 · Rajil TL
Basics
Nervous Tissues
Nervous tissues are made of cells specialized to receive and transmit electrical impulses from specific areas of the…
July 14, 2021 · Rajil TL
Basics
Muscle Tissues
There are three types of muscle in animal bodies: smooth, skeletal, and cardiac. They differ by the presence…
July 14, 2021 · Rajil TL
Basics
Blood
Blood is considered a connective tissue because it has a matrix, as shown in Figure 14.17. The living cell…
July 14, 2021 · Rajil TL
Basics
Cartilage
Cartilage is a connective tissue with a large amount of the matrix and variable amounts of fibers. The cells,…
July 14, 2021 · Rajil TL
Basics
Connective Tissues
Connective tissues are made up of a matrix consisting of living cells and a non-living substance, called the ground…
July 14, 2021 · Rajil TL
Basics
Animal Primary Tissues
Multicellular, complex animals have four primary types of tissue: epithelial, connective, muscle, and nervous. Recall that tissues are…
July 14, 2021 · Rajil TL