Bundle of Tendons muscle fibers Connective Muscle tissue Sarcolemma plasma membrane)Transverse tubule Muscle fiber Nucleus Sarco plasmic reticulum Mitochondria Z line I band m
16
4、消化系统: 基本构成: 消化道:口、口腔、咽、食道、胃、小肠、大肠、直肠 肛门。 消化腺:唾液腺、肝、胰、及胃腺、肠腺 基本功能 摄取营养物质 物理性、化学性分解这些物质 吸取其精华 排除其糟粕 无肴推动物的消化系统是如何演化的?哪些动物是 细胞内消化? 请回答!!
17 4、消化系统: 基本构成: – 消化道:口、口腔、咽、食道、胃、小肠、大肠、直肠、 肛门。 – 消化腺:唾液腺、肝、胰、及胃腺、肠腺。 基本功能: – 摄取营养物质 – 物理性、化学性分解这些物质 – 吸取其精华 – 排除其糟粕 无脊椎动物的消化系统是如何演化的?哪些动物是 细胞内消化? 请回答!!
Pharynx Snail Liver Cockroach izard Anus Rectum Salivary glands Salivary glands PancReas Caccum leeth Anus small Stomath intestine
18
Parotid salivary gland Oral cavity Tongue Pharynx Teeth Epiglottis Sublingual and Esophagus submandibular livary gland Trachea Lung Diaphragm Liver Stomach Gall bladder Pancreas Duodenum (small intestine Transverse colon Large intestine Jejuni (colon) (small intestine Appendix lleu (small intestine Rectu
19
Gall bladder storing bile which aids in Common/ Pancras, producing and bicarbonate of Odd 41.17 The Ducts of the Gall Bladder and Pancreas Hile produced in the liver leaves the liver via the hepatic Branching off this duct is the gall bladder. stores bile. Below the gall bladder. hepatic duct is common bile duct and is joined by the fore entering the duodenun
20