We think you have liked this presentation. If you wish to download it, please recommend it to your friends in any social system. Share buttons are a little bit lower. Thank you!
Presentation is loading. Please wait.
Published byAngel Owens
Modified over 2 years ago
© Knox Academy Biology Department Knox Academy Biology Department Fish Dissection
© Knox Academy Biology Department Preparation & Examination Locate major external anatomical parts: Locate major external anatomical parts: Dorsal Fin Dorsal Fin Posterior Dorsal Posterior Dorsal Pectoral Fins Pectoral Fins Pelvic Fins Pelvic Fins Anal Fins Anal Fins Caudal Fin Caudal Fin Gill Covers (operculum) Gill Covers (operculum) Lateral line - sensory organ of fish Lateral line - sensory organ of fish Remove several scales Remove several scales Prepare a dry-mount of a scale. Prepare a dry-mount of a scale. Observe it under a microscope Observe it under a microscope What function do you think scales serve? What function do you think scales serve?
© Knox Academy Biology Department Dissection Remove operculum with scissors Remove operculum with scissors Observe gill anatomy Observe gill anatomy Rakers - white, comb-like archesRakers - white, comb-like arches Filaments - Red fingerlike projectionsFilaments - Red fingerlike projections With a scalpel, remove a section of the lateral line With a scalpel, remove a section of the lateral line What function does this organ serve? What function does this organ serve? Do you notice a concentration of nerve endings? Do you notice a concentration of nerve endings? Begin the main incision Begin the main incision Open the abdomen (below the gill) carefully with a scalpel Open the abdomen (below the gill) carefully with a scalpel Cut with a scissors: remove a oval-shaped piece of skin (only skin) running from underneath the gills, to the anus, up to the lateral line, along the lateral line, to the gill, down to where you started the incision. Remove flap of skin (see diagram on next slide) Cut with a scissors: remove a oval-shaped piece of skin (only skin) running from underneath the gills, to the anus, up to the lateral line, along the lateral line, to the gill, down to where you started the incision. Remove flap of skin (see diagram on next slide)
© Knox Academy Biology Department Main Incision Cut along the blue line... Only cut through scales, muscles, and skin Only cut through scales, muscles, and skin Take special care not to cut too deep! Take special care not to cut too deep!
© Knox Academy Biology Department Anterior View 1. Gills 2. Heart 3. Liver 4. Pyloric caeca 5. Small intestine 6. Stomach 7. Swim bladder
© Knox Academy Biology Department Posterior View 1. Swim bladder 2. Gonad 3. Large intestine 4. Urinary bladder 5. Anus
© Knox Academy Biology Department Close-up: Body Cavity Close-up: Body Cavity Muscle Swim Bladder Liver Spleen Gastric Cecae Eggs Stomach Ovary Small Intestine
© Knox Academy Biology Department Can you identify the parts?
Pig Dissection. hael.Gregory/files/Bio%20102/Bio%20102 %20Laboratory/Fetal%20Pig/Fetal%20Pig. htm.
Dissections. Ascaris Ascaris male - internal (whole)
A Frame of Reference for Anatomical Study Anatomy and Physiology Mr. Knowles Chapter 1 Liberty Senior High School.
MAIN IDEA: What are the main external and internal anatomical features of fish ?
Chapter 1 The Human Body: An Orientation. Anatomy – study of the structure and shape of the body and body parts and their relationship to each other Anatomy.
A General Look External Anatomy There are about 25,000 different species of fishes. This is more than any other vertebrate group.
Means fish with bony skeletons There are over 20,000 species of bony fish.
PHYLUM CHORDATA Dorsal Notochord-long rod that supports the body- becomes the vertebrae in most. Dorsal Nerve cord-becomes the central nervous system.
© 2012 Pearson Education, Inc. PowerPoint ® Lecture Slides Prepared by Patty Bostwick-Taylor, Florence-Darlington Technical College C H A P T E R 1 The.
Introduction to Human Anatomy & Physiology I.ANATOMY & PHYSIOLOGY 1. Anatomy is the branch of science that deals with the structure (morphology) of body.
Fish. What are Fish? Fish are aquatic vertebrates (animals with backbones) with fins for appendages. They "breathe" by means of gills. Fish make up the.
The Human Body: An Orientation. Overview of Anatomy and Physiology Anatomy – the study of the structure of body parts and their relationships to one another.
THIS IS With Host... Your Directional Terms Organ Systems Regional Landmarks Types of Anatomy Body Cavities Misc.
Anatomy & Physiology Chapter 1 The Human Body: An Orientation Original.
BODY PLANES, DIRECTIONS, CAVITIES BODY PLANES LINE THROUGH THE BODY AT VARIOUS PARTS TO SEPARATE THE BODY INTO SECTIONS.
Dorsal Fin Caudal Fin Anal Fin Pelvic Fin Pectoral Fin Operculum.
Anatomy Lesson Frances Close ACED 7100 May 25, 2012.
Unit C:Body Systems Specific Objectives: Analyze the relationship of tissues, organs, and body systems. Explain the structural units of the body. Analyze.
Anatomy & Physiology Human Structure & Human Function.
Welcome to Anatomy & Physiology I. Syllabus Grades –25% homework –25% exams –25% final exam –25% participation Assignments and Tests – should be turned.
We need to digest our food Our body needs to break down our food into simpler substances. Is made up of the following organs.
Rat Dissection The following slides are intended to help you with dissection of the rat and then to review for the lab practical that will follow. RATS.
Classification is the act of distributing things into classes or categories of the same type.
1. Chordate Characteristics Characteristics of Chordates A chordate is an animal that in some stage of development has: 1. Notochord- dorsal rod of specialized.
Cardiovascular System Part II. Blood Vessels Vascular system: A closed transport system where blood circulates through the blood vessels Arteries:
Digestion and Absorption 10/11/11 Georgia Performance Standard S7L2 Students will describe the structure and function of cells, tissues, organs, and.
1 The Human Body: An Orientation Part B. Anatomical Position Body erect, feet slightly apart, palms facing forward, thumbs point away from body Figure.
Copyright © 2010 Pearson Education, Inc. Overview of Anatomy and Physiology Anatomy: The study of structure Subdivisions: Gross or macroscopic (e.g., regional,
© 2017 SlidePlayer.com Inc. All rights reserved.