Chap 4 Tissues, glands, membranes Memmler’s A&P Chap 4 Tissues, glands, membranes
Tissues
Epithelial tissue p60-62 Epithelium: Features of epithelium Mucus Covers surfaces lines cavities forms glands Features of epithelium Mucus Cilia Glands Exocrine glands Endocrine glands Repairs itself quickly after it is injured
Connective tissue p62-63 Supports and forms framework of all parts of body Living cells in a matrix Types of connective tissue Circulating connective tissue Generalized connective tissue Structural connective tissue
Generalized connective tissue p63 Loose connective tissue Adipose tissue Dense connective tissue Contains collagen Organ capsules Tendons Ligaments Elastic connective tissue
Structural connective tissue p64 Cartilage Made by chondrocytes Bone Osteocytes Osteoblasts Osteoclasts
Muscle tissue p65-66 Skeletal muscle Cardiac muscle (myocardium) Smooth muscle
Nerve tissue p67 Neuron Structure of neuron: dendrites axons myelin Neuroglia are support cells for neurons
Membranes p67-68 Epithelial membranes Serous membranes Mucous membranes Cutaneous membrane
Serous membranes p69 visceral or parietal
Connective tissue membranes p69 Synovial membranes Meninges Fascia Fibrous pericardium Periosteum Perichondrium
Tumors p70-71 Benign tumors Malignant tumors
Symptoms of cancer p71 Unusual bleeding or discharge Persistent indigestion Chronic hoarseness or cough Changes in color or size of moles A sore that does not heal Unusual lump Late symptoms: weight loss and pain
Diagnosing cancer p71-72 Biopsy Radiography (x-ray) Ultrasound Computed tomography (CT scan) Magnetic resonance imaging (MRI) Positron emission tomography (PET scan)
Cancer p72 Tumors are staged to establish extent of metastasis Treatment: Surgery Radiation Chemotherapy
Tissues and aging p73 Lose elasticity and collagen Blood vessels have less capacity to expand Tendons and ligaments stretch, causing a stooped posture Bones lose calcium, becoming brittle and prone to fracture Muscles atrophy