PROTECTION, SUPPORT, AND MOVEMENT IN ANIMALS.pptx

Earth and Life Science 4th quarter
lesson grade 11

1. PROTECTION, SUPPORT, AND MOVEMENT IN ANIMALS

2. The Integumentary system is in charge of protecting the body from the ambient, surroundings, keeping it safe from various kinds of damage. It includes the largest organ in the body, the skin

3. The integument is the natural covering of the body which delimits and marks it separation from the environment. The integumentary system serves as a barrier that protects the body from mechanical abrasion or punctures

4. In some animals, the integument functions as the breathing apparatus through cutaneous breathing.

5. Invertebrate Integument For some protozoans, they have developed a thin envelope on their plasma membrane called a pellicle that augments the integument function.

6. Invertebrate Integument Higher invertebrates demonstrate a layered type of integument with the appearance of the epidermis .

7. Invertebrate Integument Arthropods and cephalopods also have tough protein chitin invested in their exoskeleton that imparts additional protection and strength.

8. Invertebrate Integument Insect integument undergoes cross-linking of the cuticle layers forming the sclerotin, as a result of the process of sclerotization .

9. Vertebrate Integument Vertebrates have two distinct layers in their integuments: the thin outer epidermis , and the thicker, inner dermis.

10. Vertebrate Integument The epidermis is composed of multiple layers or strata that have different functions to perform.

11. Vertebrate Integument The dermis is a thick layer comprised mostly of fibrous connective tissue embedded with other structures such as blood vessels, lymph vessels, hair follicles

12. Vertebrate Integument The dermis cushions, supports, and nourishes the epidermis. - It give rise to the tough skin of crocodiles and lizards

13. Vertebrate Integument In birds and butterflies, the beautiful bright and metallic colors of the epidermis and its derivatives are due to physical structure of the integument itself, which reflects specific wavelengths of light while absorbing the others. Colors produce due to structure of integument are called structural colors.

14. Integument colors can also come from pigments contained in chromatophores that can change its color intensity depending on the stimulus.

15. The most common animal pigment is the black or brown colored melanin while the yellow and reddish colors are due to the carotenoid pigments.

16. SKELETAL SYSTEM

17. Hydrostatic Skeletons