Class Notes (838,541)
Canada (510,933)
Biology (2,437)
Lecture

CONNECTIVE TISSUES

3 Pages
89 Views
Unlock Document

Department
Biology
Course
BIOLOGY 2D03
Professor
Laura Parker
Semester
Fall

Description
CONNECTIVE TISSUES, CARTILAGE, AND BONE Functions: mechanical support defense (phagocytic cells roam conn. tissue) communication (substrate for blood vessels, nerves) ECM matrix determines CT type: Basal Lamina Loose CT Dense CT (tendons, ligaments) Elastic CT (skin, blood vess.) Cartilage Bone RESIDENT CELLS: from Primitive Mesencymal Cell (pluripotent) FIBROBLASTS lay down collagen in direction of migration lay down other components of ECM proliferate after tissue damage WHITE FAT CELLS store lipids as energy reserve secrete regulatory molecules; production controlled by hormones BROWN FAT CELLS rich in mitochondria heat-generative (short-circuits the electrochem. gradient  energy dissipates as heat) MAST CELLS histamine secretion in response to allergen binding IMMIGRANT CELLS – see blood lecture from hematopoietic stem cell CARTILAGE Components: secreted by chondrocytes GAG’s (attach to hyaluronic acid; attract water) proteoglycans Type II Collagen (3D network) Elastic Fibers CHONDRONECTIN – enhance chondrocyte-collagen binding avascular  nutrients arrive by diffusion through PERICHONDRIUM (c.t.) anaerobic respiration Types of Cartilage: Hyaline
More Less

Related notes for BIOLOGY 2D03

Log In


OR

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


OR

By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.


Submit