Presentation is loading. Please wait.

Presentation is loading. Please wait.

Osseous Tissue (Bone Tissue)

Published byRandell Anthony Modified over 5 years ago

Similar presentations

Presentation on theme: "Osseous Tissue (Bone Tissue)"— Presentation transcript:

1 Osseous Tissue (Bone Tissue)

2 Classification of Bone by Tissue Type
Two basic types of Tissue 1. Compact bone Homogeneous Looks “smooth” 2. Spongy bone Small needle-like pieces of bone Many open spaces (like sponge) Keep bones light Figure 5.2b

3 Review: Bone is a type of connective tissue 2 Parts: 1. Cells (living)
2. Matrix (nonliving substance released by cells) A. Fiber B. Ground Substance

4 Formation of the Human Skeleton
In embryos, the skeleton is primarily hyaline cartilage During development, much of this cartilage is replaced by bone Cartilage remains in isolated areas Bridge of the nose Parts of ribs Joints

5 Bone Growth (Ossification)
Epiphyseal Plate: epi- above physean- to grow plates allow for lengthwise growth of long bones during childhood New cartilage is continuously formed Older cartilage becomes ossified Cartilage is broken down Enclosed cartilage is digested away, opening up a medullary cavity Bone replaces cartilage through the action of osteoblasts

6 Bone Growth (Ossification)
Bones are remodeled and lengthened until growth stops Bones are remodeled in response to two factors Blood calcium levels Pull of gravity and muscles on the skeleton Bones grow in width (called appositional growth)

7 1. Cells 2. Matrix Osteocytes— mature bone cells
Osteoblasts— bone-forming cells (germ cells or “bud” cells) Osteoclasts —bone-destroying cells (“breakers”) A. primarily collagen fibers flexibility tensile strength (the strength to endure stretching forces) B. calcium salts (hardness) contain calcium and phosphorus great compressional strength (the strength to endure squeezing forces) 2. Matrix

8 About 10% of bone is replaced every year in an adult skeleton
Bone Remodeling constant balance of bone deposit and removal that occurs throughout your life bone deposit occurs at a greater rate when bone is injured bone resorption allows calcium of degraded bone matrix to move into the blood. About 10% of bone is replaced every year in an adult skeleton

9 osteoblasts osteoclasts Maintenance of Bone bone formation
bone reabsorption osteoblasts osteoclasts

10 Control of Remodeling Hormonal
 Rising blood Ca2+ levels trigger the thyroid to release calcitonin   Calcitonin stimulates calcium salt deposit in bone   Falling blood Ca2+ levels signal the parathyroid glands to release Parathyroid hormone (PTH)   PTH signals osteoclasts to degrade bone matrix and release Ca2+ into the blood 

11 Hormonal effects osteoblasts osteoclasts Calcitonin (CT) from thyroid
bone formation bone reabsorption osteoblasts osteoclasts Calcitonin (CT) from thyroid Parathyroid hormone (PTH) from parathyroid

12 Before age 25 osteoblasts osteoclasts Increase bone mass
bone formation bone reabsorption osteoblasts osteoclasts Before age 25

13 bone formation bone reabsorption osteoblasts osteoclasts Age 25-50

14 Age 50-on osteoblasts osteoclasts Decrease bone mass bone formation
bone reabsorption osteoblasts osteoclasts Age 50-on

15 Stress increases bone density
Stress effects bone formation bone reabsorption osteoblasts osteoclasts Stress increases bone density

16 Increasing bone stress can reduce or eliminate age-related bone loss

17

Download ppt "Osseous Tissue (Bone Tissue)"

Similar presentations

Bone Formation, Growth, and Remodeling 1 1. Formation and Growth  Bone forms via a process called ossification or osteogenesis  As an embryo we all.

Bone Formation, Growth, and Remodeling 1 1. Formation and Growth  Bone forms via a process called ossification or osteogenesis  As an embryo we all.
PowerPoint ® Lecture Slide Presentation by Patty Bostwick-Taylor, Florence-Darlington Technical College Copyright © 2009 Pearson Education, Inc., publishing.

PowerPoint ® Lecture Slide Presentation by Patty Bostwick-Taylor, Florence-Darlington Technical College Copyright © 2009 Pearson Education, Inc., publishing.
The skeletal System CLS 224: Essentials of Human Anatomy and Physiology Deemah M. Dabbagh.

The skeletal System CLS 224: Essentials of Human Anatomy and Physiology Deemah M. Dabbagh.
The Skeletal System Part II. Bone Development Slide 5.12 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings  Osteogenesis (ossification)

The Skeletal System Part II. Bone Development Slide 5.12 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings  Osteogenesis (ossification)
PowerPoint ® Lecture Slide Presentation by Patty Bostwick-Taylor, Florence-Darlington Technical College Copyright © 2009 Pearson Education, Inc., publishing.

PowerPoint ® Lecture Slide Presentation by Patty Bostwick-Taylor, Florence-Darlington Technical College Copyright © 2009 Pearson Education, Inc., publishing.
1 The Skeletal System. 2 Parts of the skeletal system – Bones – Joints – Ligaments – Cartilage Divided into two divisions – Axial – longitudinal axis.

1 The Skeletal System. 2 Parts of the skeletal system – Bones – Joints – Ligaments – Cartilage Divided into two divisions – Axial – longitudinal axis.
Skeletal System Mr. Diaz VMHS Lecture 1. The Skeletal System ► Parts of the skeletal system  Bones (skeleton)  Joints ► Cartilages  Ligaments ► Divided.

Skeletal System Mr. Diaz VMHS Lecture 1. The Skeletal System ► Parts of the skeletal system  Bones (skeleton)  Joints ► Cartilages  Ligaments ► Divided.
The Skeletal System Anatomy & Physiology I Fall 2013.

The Skeletal System Anatomy & Physiology I Fall 2013.
The Skeletal System  Parts of the skeletal system  Bones (skeleton)  Joints  Cartilages  Ligaments  Divided into two divisions  Axial skeleton –

The Skeletal System  Parts of the skeletal system  Bones (skeleton)  Joints  Cartilages  Ligaments  Divided into two divisions  Axial skeleton –
Gross Anatomy  Long Bone. Basic Structure Superior view  Transverse section, diaphysis of an immature long bone.

Gross Anatomy  Long Bone. Basic Structure Superior view  Transverse section, diaphysis of an immature long bone.
Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings BIOLOGY OF HUMAN AGING CHAPTER 5 The Skeletal System.

Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings BIOLOGY OF HUMAN AGING CHAPTER 5 The Skeletal System.
The Skeletal System.

The Skeletal System.
Bone Formation, Growth, & Maintenance. Types of Bone Cells  Osteocytes  Mature bone cells  Osteoblasts  Bone-forming cells  Osteoclasts  Bone-destroying.

Bone Formation, Growth, & Maintenance. Types of Bone Cells  Osteocytes  Mature bone cells  Osteoblasts  Bone-forming cells  Osteoclasts  Bone-destroying.
 Parts of the skeletal system ◦ Bones (skeleton) ◦ Joints ◦ Cartilages ◦ Ligaments  Two subdivisions of the skeleton ◦ Axial skeleton ◦ Appendicular.

 Parts of the skeletal system ◦ Bones (skeleton) ◦ Joints ◦ Cartilages ◦ Ligaments  Two subdivisions of the skeleton ◦ Axial skeleton ◦ Appendicular.
Osseous Tissue (Bone Tissue). Classification of Bone by Tissue Type Two basic types of Tissue 1. Compact bone Homogeneous Looks “smooth” 2. Spongy bone.

Osseous Tissue (Bone Tissue). Classification of Bone by Tissue Type Two basic types of Tissue 1. Compact bone Homogeneous Looks “smooth” 2. Spongy bone.
Bone Development & Growth. Intramembranous Bones Forms many flat skull bones, parts of the mandible, and clavicles. Ossification Steps: 1.1 ossification.

Bone Development & Growth. Intramembranous Bones Forms many flat skull bones, parts of the mandible, and clavicles. Ossification Steps: 1.1 ossification.
Bone Remodeling Bone remodeling = combination of bone deposition and bone resorption. Deposition = taking minerals (Ca2+, Mg2+, Mn2+, phosphate) from the.

Bone Remodeling Bone remodeling = combination of bone deposition and bone resorption. Deposition = taking minerals (Ca2+, Mg2+, Mn2+, phosphate) from the.
Chapter 5 The Skeletal System. The Skeletal System  Parts of the skeletal system  Bones (skeleton)  Joints  Cartilages  Ligaments  Divided into.

Chapter 5 The Skeletal System. The Skeletal System  Parts of the skeletal system  Bones (skeleton)  Joints  Cartilages  Ligaments  Divided into.
Copyright © 2009 Pearson Education, Inc., publishing as Benjamin Cummings  Diaphysis  Shaft  Composed of compact bone  Epiphysis  Ends of the bone.

Copyright © 2009 Pearson Education, Inc., publishing as Benjamin Cummings  Diaphysis  Shaft  Composed of compact bone  Epiphysis  Ends of the bone.
PowerPoint ® Lecture Slide Presentation by Patty Bostwick-Taylor, Florence-Darlington Technical College Copyright © 2009 Pearson Education, Inc., publishing.

PowerPoint ® Lecture Slide Presentation by Patty Bostwick-Taylor, Florence-Darlington Technical College Copyright © 2009 Pearson Education, Inc., publishing.

Similar presentations

Ads by Google