Accessory organs of digestive system in goat

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1. Accessory organs of Digestive system in Goat Submitted to Dr.zeeshan Akbar Submitted by 14-Arid-2022 FAISAL SHAHZAD SOMROO

2. This system has following acessory organs 2: Accessory Organs It consist of - Tongue - Teeth - Salivary Glands - Liver - Pancreas OTHER RELEVANT STRUCTURES Abdominal Cavity, Peritoneum, and Spleen

3. TONGUE. covered by mucous membrane. Located at the floor of the mouth, between the rami of the mandible . PARTS The tongue is divided into three parts. 1. ROOT : 2. BODY : 3. APEX :

4. TONGUE Tongue is situated on the floor of mouth ,between the rami of the mandible It is narrower in the middle of the body but width of the apex and root is almost same . Color of tongue is variable. PARTS OF TONGUE 1.Root 2.Body 3.Apex

5. TONGUE PAPILLAE : The mucous membrane o f tongue give rise a large number of projections,called papillae which are of following four tyoing PARTS: 1.Filliform 2.Fungiform 3.Lenticular 4.vallat e

6. TONGUE 1.Filliform: Thread-like and small in size and soft touch 2.Fungiform: Mushroom-like, they are relatively large in size . 3.Lenticular: They are rounded papillae on dorsum linguae. 4.Vallate: *They are cup-shape. *They are 14-16 in number.

7. Teeth COMPOSITION. Pulp Dentine Enamel Comentum DESCRIPTION A tooth presents four surfaces: 1. Vestibular : 2. Lingua: 3.contact 4. Masticating :

8. PARTS OF TEETH 1.Crown: It is the parts of the tooth visible above the mucous membrane of the gum. 2.Root: A tooth is anchored by its root .In a socket of a bone , called alveolus

9. COMPOSITION OF TEETH COMPUSION: TEETH IS COMPOSED OF FOUR TYPES OF TEETH. 1.PULP: Inner part of teeth that contain nerve ,vessels ,and loose connective tissue. 2.Dentine: Connective tissue surrounding the pulp. 3.Enamel: Outer surface located in the root.

10. SETS OF TEETH diphyodont . i ) Deciduous Teeth ii) Permanent Teeth TYPES OF TEETH The teeth are of four types named as follows; Incisor Canine Premolar molar

11. DENTAL FORMULA Deciduous Teeth Formula Permanent Teeth Formula 2 (Di 0/4 Dc 0/0 Dp 3/3) = 20 2 (I 0/4 C 0/0 Pm 3/3 M 3/3) = 32 Di = Incisors (of deciduous teeth) Dc = Canine of deciduous teeth Dp = Premolars (of deciduous teeth) I = Incisors of permanent teeth C = Canines (of permanent teeth) Pm = Premolars of permanent teeth M = Molars (of permanent teeth

12. Salivary Gland enzyme ptylalin. TYPES OF GLANDS Two categories: 1. Chief Salivary Glands i ) Parotid gland ii) Mandibular gland iii) Sublingual gland 2. Minor Salivary Gland i ) Labial gland ii) Buccal gland iii) Lingual gland iv) Palatine gland The parotid salivary gland secretes primarily a serous saliva. The mandibular and sublingual glands are classified as mixed glands. Most of the minor salivary glands have a mucous secretion.

13. LIVER largest gland of the body 1-2 % WIEGHT DESCRIPTION The liver presents two surfaces. ( i ) Parietal Surface (ii) Visceral Surface IMPRESSIONS i) Reticular impression ii) Omasal impression iii) Abomasal impression iv) Renal impression (possess by the right kidney

14. Gall Bladder pear-shaped LIGAMENTS OF THE LIVER The attachment of the liver is governed by six chief ligaments. 1. Coronary Ligament 2. Falciform Ligament 3. Hepatorenal Ligament kidney 4. Round Ligament 5. Right Lateral Ligament 6. Left Lateral Ligamen BLOOD SUPPLY Hepatic artery ceoliac artery Portal vein

15. FUNCTIONS OF LIVER 1. METABOLISM 1. METABOLISM 3. EXCRETION 4. PROTECTIVE 5. STORAGE of glycogen, iron, fat, vitamin A and D

16. SPLEEN Weight Aprox. 100 grams Length 12 -15 cm Greatest width of spleen 7.5 -10 cm acts as a filter for blood and plays an important role in the immune responses of the body. DESCRIPTION The spleen may be described as having : Two Ends i ) Dorsal end or base ii) Ventral end Two Surfaces i ) Parietal surface ii) Visceral surface

17. FUNCTIONS OF SPLEEN 1. PHAGOCYTOSIS 2. HAEMOPOIESIS 3. IMMUNE RESPONSES 4. STORAGE OF RBCs

18. PANCREAS The weight 50 to 70 grams LOBES OF PANCREAS i ) A large Right Lobe ii) A small Left Lobe . BLOOD SUPPLY pancreatic arteries pancreatic veins FUNCTIONS OF PANCREAS 1. DIGESTIVE: Trypsin,Amylase,Lipase. 2. ENDOCRINE: Insulin helps in utilizations of sugar in the cells. Deficiency of insulin results in Hyper- glycemia . The disease is called diabetes mellitus. 3. PANCREATIC JUICE: It provides appropriate alkaline medium (pH – 8) for the activity of the Pancrea-tic enzymes.

19. T H E E N D Any questions?