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Digestion.

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Presentation on theme: "Digestion."— Presentation transcript:

1 Digestion

2 Blood Flow Through the Heart
Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

3 Human Respiratory System
Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

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6 22 bones in skull 6 in middle ears 1 hyoid bone 26 in vertebral column 25 in thoracic cage 4 in pectoral girdle 60 in upper limbs 60 in lower limbs 2 in pelvic girdle 206 bones in all

7 Useless Bone Fun Fact Steel is very heavy.
To build very high structures architects need to be creative. One architect noticed the structure of a very light, yet very strong bone…the Femur. What was the architect’s name?

8 Useless Bone Fun Fact His name was Gustave Eiffel

9 Useless Bone Fun Fact How old is your skeleton?
How old is your parent’s skeleton? How old is your grandparent's skeleton?

10 Useless Bone Fun Fact On average most human skeletons are only 10 years old…Explain how.

11 Form and Function in Annelids

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13 Groups of Roundworms: Nematoda Class: Oligochaeta
Anus Setae Body segments Gizzard Crop Dorsal blood vessel Clitellum Mouth Brain Ganglion Circular muscle Ventral blood vessel Ganglia Longitudinal muscle Nephridia Ring vessels Reproductive organs

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15 Pages 701-7 Eye: Squid have a well developed eye that allows them to see as well as people! Arm: Have 8 arms with suction cups Fin: These help squid change direction when swimming Tentacle: Longer than the arms and have suction cups at the tip only Chromatophores: These spots change size to change the squid’s color for camouflage

16 Females “in berry” carry developing embryos on swimmerets

17 INTERNAL

18 ORAL VIEW

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21 AMBULACRAL GROOVE TUBE FEET sit in GROOVE

22 DIGESTIVE GLAND Makes BILE ABSORBS NUTRIENTS

23 STOMACH

24 EUCOELOM OPEN CIRCULATION

25 AMBULACRAL RIDGE AMPULLAE (tops of tube feet)

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27 DIGESTIVE GLAND GONAD OSSICLES

28 Caudal Fin Anterior Dorsal Fin Posterior Dorsal Fin Pectoral fin

29 Spiracle Gill slits Eye

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33 Mouth Lateral Line Nostril

34 Myomere Skin

35 Clasper Cloacal opening

36 Kidneys

37 Rugae

38 Spleen Liver

39 Rectal gland

40 Gallbladder Intestine

41 Stomach Heart Testes

42 Gill Arches

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46 The yolk sac provides nutrients to the developing offspring.


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