Nervous Tissue

May 28, 2017 by in GENERAL Comments Off on Nervous Tissue

THOMAS F. FLETCHER Neurons Neuronal Structure Cell body Nucleus Cell body cytoplasm Neuron processes Dendrites Axon Terminal branches (telodendrites) Classification Regions of a Neuron Neuronal Communication Interneuronal chemical synapses Synaptic…

read more

Cardiovascular System

May 28, 2017 by in GENERAL Comments Off on Cardiovascular System

BLOOD VESSELS Structure–Function Relationships of Blood Vessels The blood vessels of the macrovasculature are visible with the naked eye and include elastic and muscular arteries and accompanying veins. Arteries of…

read more

Endocrine System

May 28, 2017 by in GENERAL Comments Off on Endocrine System

OURANIA M. ANDRISANI Endocrine Organs Hypothalamusv Hypophysis Cerebri (Pituitary Gland) Adenohypophysis Pars distalis Acidophils Basophils Chromophobes Pars intermedia Pars tuberalis Neurohypophysis Hypothalamo-neurohypophyseal tract Hypothalamo-adenohypophyseal axis Epiphysis Cerebri (Pineal Gland) Thyroid…

read more

Blood and Bone Marrow

May 28, 2017 by in GENERAL Comments Off on Blood and Bone Marrow

BLOOD The blood consists of specialized cells derived from the bone marrow that are suspended in a liquid called plasma. In an adult animal, the blood volume is about 8…

read more

Cytology

May 28, 2017 by in GENERAL Comments Off on Cytology

GENERAL OVERVIEW The cell is the smallest unit of life, and all living matter (protoplasm) is composed of cells. Cells possess the unique abilities to replicate and to create energy…

read more

Epithelium

May 28, 2017 by in GENERAL Comments Off on Epithelium

INTRODUCTION Cells, Tissues, and Organs Epithelium is a tissue. A tissue is an aggregation of cells and intercellular substances specialized to perform particular functions. Despite its structural and functional complexity,…

read more

Eye

May 28, 2017 by in GENERAL Comments Off on Eye

FIBROUS TUNIC Sclera The sclera is a layer of dense irregular connective tissue that protects the eye and maintains its form (shape). While the size of the globe can be…

read more

Muscle

May 28, 2017 by in GENERAL Comments Off on Muscle

SMOOTH MUSCLE Light Microscopic Structure Smooth muscle cells are elongated, spindle-shaped cells (Fig. 5-1). Each cell contains a single, centrally located nucleus. The cells range from 5 to 20 µm…

read more

FORTY-ONE: Paresis or Paralysis

May 25, 2017 by in SMALL ANIMAL Comments Off on FORTY-ONE: Paresis or Paralysis

Clinical Vignette Sadie, a 2-year-old female black Labrador retriever, is presented for a very acute onset of dragging the right rear limb. Sadie was normal at 10 AM, and when…

read more

SEVENTEEN: Disturbances of Heart Rate, Rhythm, and Pulse

May 25, 2017 by in SMALL ANIMAL Comments Off on SEVENTEEN: Disturbances of Heart Rate, Rhythm, and Pulse

Problem Definition Disturbances of heart rate and cardiac rhythm are commonly present with both cardiac and noncardiac disorders. While some arrhythmias have no clinical consequence, some cause significant hemodynamic compromise,…

read more
Get Clinical Tree app for offline access