{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Chapter 40- animal form and function

Chapter 40- animal form and function - o Figure 40.5...

Info icon This preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 40 Basic Principals of Animal Form and Function Homeostasis: tendency of living things to try to maintain their structure and regulate their internal environment Figure 40.6 1- negative feedback: a change in one direction causes a series of events in the other direction to counteract the change o Biological: body temp of 37 degrees C (97.6 F) o Physical: house thermostat o All about sensors and effectors (shivering, goosebumps; trying to increase temp) o Hypothalamus Positive feedback: initial change in one direction sets off a series of events that intensifies a change in that same direction o Biological: population explosion o Physical: “snowball” effect o All about sensors and effectors (giving birth) Organization of the animal body Cells, tissues, organs, organ systems Tissues o Cells and/or non-cellular components o 4 types:
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
o 1. Epithelial: cells form continuous sheets called membranes, cover body and line all body cavities; FORMS BARRIER
Image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: o Figure 40.5; squamous and columnar o 2. Connective: surrounded by large quantities of extracellular substances (between the living cells) which are secreted from the cells of the connective tissue Dermis (skin), fat cells, blood and lymph, tendons and ligaments, cartilage, bone (central canals which have blood vessels, capillaries) o 3. Muscle: tissue specialized for contraction. Cells that contain ACTIN and MYOSIN o 4. Nerve: specialized to generate and conduct electrical signals • Organs o Formed from two or more tissue types o Different organs have different proportion of tissue types o Skin has all four tissue types (figure 40.11) o 1. Epidermis: specialized epithelial tissue o 2. Dermis: connective tissue o 3. Nerve tissue o 4. Muscle tissue • Organ Systems o Consist of two or more organs o Examples are? (table 27.1)...
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern