External structure of a pig. Virtual Fetal Pig Dissection Guide with Pictures & Worksheets 2019-01-30

External structure of a pig Rating: 4,7/10 124 reviews

What internal/external structures of a pig's heart can you recognize through these photos taken from a dissection?

external structure of a pig

Other terms are sometime used for this syndrome including periparturient hypogalactia syndrome, puerperal toxaemia, and farrowing fever. Similar to human dental anatomy, the overall dental anatomy of the pig consists of incisors, canines, pre-molars, and. Terminology Adjuvant - A substance added to an inactivated vaccine to make it more effective. The chamber between the cornea and the lens is filled with a thin watery fluid called aqueous humor, and that between the lens and the retina by a thick jelly-like substance called vitreous humor. Source: Digestive System The digestive tract can be considered as a tube that starts at the mouth and finishes at the rectum Pictured below. .

Next

What Are the Similarities Between a Fetal Pig's Anatomy and a Human's Anatomy?

external structure of a pig

They produce a secretion which gives the animal its characteristic smell. Cystitis - Inflammation usually due to infection of the lining of the bladder. Forelimb: The arm is supĀ­ported by a stout humerus. It provides openings of passages for air and food and has jaws and teeth for chewing The teeth of a guinea pig form a V shape with the apex directed towards the front. The apex of the scapula is expanded and bears the glenoid cavity into which fits the head of the humerus. The sternum of the guinea-pig is formed by the fused ventral ends of the ribs and does not correspond to the sternum of the toad. It covers all the body systems and includes quizzes to test your knowledge! A small coccygeal artery is given out from the distal end of the dorsal aorta which supplies the sacral and coccygeal parts of the vertebral column.


Next

What Are the Similarities Between a Fetal Pig's Anatomy and a Human's Anatomy?

external structure of a pig

Some people get confused and use the term parity when they mean pregnancy. When they migrate into tissues they become localised tissue macrophages. Crude fibre is a mixture of cellulose. Small Intestine: The site where most of the digestion and absorption of nutrients take place, it is made of the duodenum, the jejunum and the ileum. They are better known as the red blood corpuscles. The two uteri unite to form a median tube which continued back- is wards behind the neck of the urinary bladder as the vagina.

Next

What Are the Similarities Between a Fetal Pig's Anatomy and a Human's Anatomy?

external structure of a pig

The small intestine in cross section contains millions of finger like projections called villi. They warm and filter air as it passes through the nose. When the pig walks or runs its skin may then become blue and it has difficulty breathing. The jejunum and the ileum both are the sites of absorption and are lined with villi and microvilli, which increase the surface area in and can absorb the nutrients digested by the duodenum. The external ear is composed of the pinna and the external auditory meatus. Each semicircular canal opens into the utriculus by both ends, but bears an ampulla at only one end. It is also used to describe osteochondrosis.

Next

Fetal Pig Dissection Lab Answers

external structure of a pig

It sends communicating branches to the sympathetic plexus on the heart as well as on other viscera. Each common carotid artery runs forward through the neck along the outer side of the windpipe, and near the level of the voice box divides into two branchesā€”an external carotid supplying the outer side of the head, and an internal carotid supplying the brain and its menĀ­inges. Open the mouth as far as you can. It consists of two corpora caverĀ­nosa and the single corpus spongiosum. Pancreas: a bumpy organ located along the underside of the stomach, a pancreatic duct leads to the duodenum. Prolactin - A hormone from the pituitary gland involved in the initiation and maintenance of milk production.


Next

What Are the Similarities Between a Fetal Pig's Anatomy and a Human's Anatomy?

external structure of a pig

A stout innominate artery arises from the arch proper and at once divides into the right subclavian, and the right and left common carotid arteries. The ribs, with the sternum and the vertebral column, form a basket for enclosing the heart and lungs. The number and arrangeĀ­ment of the various kinds of teeth differ according to the feeding habit, and is expressed in the form of a dental formula. It holds mainly the jejunum and the ilieum. The abdominal cavity is now exposed.

Next

Fetal pig

external structure of a pig

The ankle or tarsus includes six bones arranged in two rows: a proĀ­ximal row of two bones called astragalus and calcaneum, a centrally placed bone called naviĀ­cular, and a distal row of three small tarsals. It lies completely enclosed by a membranous pericardium, in a space called mediastinum, between the two pleural cavities. Cryptorchid - A male pig whose testes have not descended through the inguinal canals. The fetal pig's digestive organs are well developed before birth, although it does not ingest food. As long as the pork industry exists, fetal pigs will be relatively abundant, making them the prime choice for classroom dissections. This opening is known as the fenestra ovalis.


Next

Pig Anatomy and Terminology

external structure of a pig

Follow the diagram to the left, whic shows where to make the incisions. The cystic duct from the gall-bladder joins the hepaĀ­tic ducts from the liver to form the common bile duct which opens into the duodenum behind the pyloric sphincter. The terĀ­minal phalanx ends in a claw. Used during surgery or a painful procedure e. Analgesic: An agent that alleviates pain without loss of consciousness. The stomach is responsible for churching and breaking down food. The ileum is held together by mesentery.

Next

Guinea Pig Anatomy

external structure of a pig

Its convex anterior surface fits into the concavity of the diaphragm and the concave posterior surface lies close to the stomach. Each innominate vein is formed by the union of five tributaries: a subclavian from the forelimb, an internal jugular from die brain, an external jugular from the outer side of the head and face, an anterior intercostal from the first and second intercostal spaces and an internal mammary from the ventral body wall. The spinal accessory is a short nerve which passes almost vertically downwards to innervate certain muscles of the neck region. Near each ovary lies the funnel-shaped openĀ­ing of an oviduct. A bacterium that produces a severe haemorrhagic and necrotising pneumonia with pleurisy.

Next

Guinea Pig Anatomy

external structure of a pig

However in some viral diseases their numbers can be significantly reduced. The middle ear lies behind the tympanic membrane. Atrophy of the villi in the intestine occurs at weaning time causing malabsorption. Hypothalamus - An area in the brain responsible for providing both nervous and hormonal control over most other hormone producing glands. Pericarditis occurs as a result of infectious agents which cause respiratory diseases.

Next