ANAT 261 Lecture Notes - Osteon, Lysosome, Epiphyseal Plate

132 views6 pages

ceruleanprairie-dog589

6 Apr 2012

School

McGill University

Department

Anatomy & Cell Biology

Course

ANAT 261

Professor

Craig Mandato

For unlimited access to Class Notes, a Class+ subscription is required.

Document Summary

Cartilage and bone are specialized types of ct which secrete a firmer ecm than normal. This is due to the presence of other minerals which harden the matrix. Cartilage allows the tissue to support mechanical stress without distortion and also provides support to adjacent soft tissues. This allows for movement and flexibility (such as in the nose and ears) Cartilage consists of chondrocytes and an extensive ecm contain fibers and ground substance. These cells are located in spaces within the ecm known as lacunae or chondroplasts : these cells form groups known as isogenic groups. Elastic cartilage (nose, ear and larynx: flexible, soft. Fibrocartilage (intervertebral discs: hard, won"t be seen in the lab. The ecm for these three types of cartilage differs from one another: Fibers: collagen type ii in hyaline and elastic cartilage, elastic fibers in elastic cartilage, collagen type i in fibrocartilage. Ground substance stays the same for them all: proteoglycans including keratin sulfate and chondroitin sulfate.

Related Questions

1. Build a dichotomous key to all the tissues you have seen in the lab. For this, you can use any of their morphological characteristics (under the microscope) but not their physiological functions.

Tissues seen in the lab:

Epithelia: simple squamous, simple cuboidal, simple columnar, pseudostratified columnar, stratified squamous, stratified cuboidal and columnar, transitional, Globet cells.

Connective: adipose, areolar, hyaline cartilage, fibrocartilage, fibrocartilage, elastic cartilage, bone, blood

Muscle: smooth, muscle, cardiac muscle, skeletal muscle

Nervous: neuron cells, glial cells

Write a short, but well written essay on the two topics below indetail. Concentrate on anatomy and histology.

1. Regarding cartilage:

Compare the structure of fibrocartilage, hyaline cartilage, andelastic cartilage.

Indicate one place in the body where each type is found.

2. Regarding skeletal muscle:

Explain how embryonic development of muscle fibers is related totheir structure.

Explain why a sarcomere is known as the contractile unit ofmuscle, based on its structure and function.

champagnechinchilla658

Build a dichotomous key to all the tissues you have seen in the lab. For this, you can use any of their morphological characteristics (under the microscope) but not their physiological functions.

Tissues seen in this lab:

1) Epithelia: simple squamous, simple cuboidal, simple columnar, pseudostratified columnar, stratified squamous, stratified cuboidal and columnar, transitional, and specialized epithelia (goblet cells).

2) Connective Tissue: Adipose, Areolar, Cartilage, hyaline cartilage, fibrocartilage, elastic cartilage, bone and blood.

3) Muscle: Smooth muscles, Cardiac muscles, skeletal muscle

4) Nervous tissues: Neurons, central nervous system (CNS), satellite cells, schwann cells, ependymal cell

ANAT 261 Lecture Notes - Osteon, Lysosome, Epiphyseal Plate

Document Summary

Get access

Related Documents

ANAT 261 Lecture Notes - Lecture 4: Type I Collagen, Hyaline Cartilage, Elastic Cartilage

BIOL-3150 Chapter Notes - Chapter 6: Intramembranous Ossification, Hydroxylapatite, Flat Bone

ANHB2214 Lecture Notes - Lecture 2: Type Ii Collagen, Ear Canal, Hyaline Cartilage

Related Questions