Physiology 3140A Lecture Notes - Lecture 2: Endothelium, Leading Edge, Desmosome
24 Sep 2016
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Nervous tissue: mental activity, sensory input and integration, regulates muscles and glands, homeostasis, spinal cord, brain. Muscular tissue: contraction; movement and support, skeletal muscle, cardiac muscle, smooth muscle. Connective tissue: supportive role in tissues and organs: energy storage (e. g. nutritional support for epithelium), protection of organs, tissue repair, structure, adipose tissue (fat), collagen based tissue (bones, teeth, cartilage, tendons) Epithelial tissue: lines surfaces and cavities; secretion, absorption, protection etc, blood vessel cells, alveoli, gut lining, epidermis (skin, hair, nails, etc) Blood: regulates nutrient and oxygen transport, metabolic waste, immune system, white blood cells, red blood cells, platelets. Zygote (fertilized egg) is released from ovaries during ovulation: zona pellucida is the thick transparent membrane surrounding a mammalian ovum before implantation. Does not change in size during development. Cells on outside of blastocyst: outer cell mass ( trophoblast cells": give rise to the placenta. Cells on inside of blastocyst: inner cell mass ( embryoblast cells": give rise to the embryo.
