Cells, Tissues and Organs
DH 110
Oral Histology and Embryology
Lesson 1
Tammy Fisher RDH BS
Tammy Fisher RDH
817-233-4898
tammyfish@sbcglobal.net
tfisher@concorde.edu
Roll Call
Where were you born?
Where do you live now?
Introduction to DH110
Syllabus
Calendar
Objectives
Book
TRACI Project
Oral Histology
The branch of biology that
studies the microscopic
structure of oral tissues.
Embryology
The branch of biology that
studies the formation and
early development of living
organisms.
The Cell
Smallest unit of structure in the human body.
Composed of a nucleus and cytoplasm.
Cell division is accomplished by mitosis or
meiosis.
Apoptosis-cell death.
Mitosis-The cell cycle of a
somatic cell
Interphase
Prophase
Metaphase
Anaphase
Telophase
Meiosis
Only in reproductive (germ) cells.
Two cell divisions.
Results in the formation of a
gamete.
Origin of Human
Tissue
•Proliferative stage - rapid growth of the
blastocyst which lasts for two weeks.
•Embryonic stage – from week 2 to week 8
tissues develop and the organ systems begin
to form.
•Fetal period – from week 8 to birth tissues
enlarge, differentiate and begin to function.
Development of
Human Tissues
1)
2)
3)
4)
Epithelial Tissue
Nervous (Neural) Tissues
1)
2)
3)
Brain
Spinal Cord
Cranial Nerves
1)
2)
3)
Connective Tissue Proper
Blood and Lymphatic Tissues
Cartilage and Bone
1)
2)
3)
Skeletal
Smooth
Cardiac
Connective Tissue
Muscle
Organ Systems
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Integumentary (Skin System)
Neural System
Skeletal System
Digestive System
Respiratory System
Vascular System Lymphatic System
Muscular System
Endocrine System
Urinary System
Reproductive System
Next Week Lesson 2
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Read chapters 1-4.
You may answer the study questions for chapters
1-2 as you read.
You may answer the Self- Evaluation questions for
chapters 3-4 as you read.
No graded homework or quizzes for next week!
Don’t forget to “SPRING FORWARD” on Saturday pm!