Question

matching the following organs to their respective system. ( some may belong to more than one but just give one answer.

1. ____ brain\ta. integumentary system
2. ____ biceps brachii\tb. skeletal system
3. ____ spleen\tc. muscular system
4. ____ anterior pituitary\td. nervous system

40 ____ skin\te. endocrine system (secretes hormones)

1. ____ stomach\tf. cardiovascular system
2. ____ skull\tg. lymphatic system ( disease defense)

43 ____ testicles\th. respiratory system

1. ____ kidneys\ti. digestive system
2. ____ lungs\tj. urinary system

k. reproductive

match the terms on the left with the descriptions on the right. place the correct letters in the blanks on the left.
____ 46. atom\ta. collection of different tissues working together
____ 47. cell
b. collection of similar cells working together
____ 48. molecule\tc. combination of two or more atoms
____ 49. organ\td. compartment within a cell that is the site of specific chemical reactions
____ 50. organ system\te. many organs working together
____ 51. organelle\tf. smallest living unit of structure and function
____ 52. tissue\tg. smallest unit of an element or of matter

Explanation:

• Brain is part of the nervous system which controls and coordinates body activities.
• Biceps brachii is a muscle, thus in the muscular system.
• Spleen is an organ of the lymphatic system which helps in disease - defense.
• Anterior pituitary secretes hormones, so it is in the endocrine system.
• Skin is the main organ of the integumentary system.
• Stomach is involved in digestion, so it is in the digestive system.
• Skull is part of the skeletal system which provides support and protection.
• Testicles are part of the male reproductive system.
• Kidneys are part of the urinary system which filters waste.
• Lungs are for gas - exchange and are in the respiratory system.
• Atom is the smallest unit of an element or matter.
• Cell is the smallest living unit of structure and function.
• Molecule is a combination of two or more atoms.
• Organ is a collection of different tissues working together.
• Organ system is many organs working together.
• Organelle is a compartment within a cell that is the site of specific chemical reactions.
• Tissue is a collection of similar cells working together.

Answer:

1. d
2. c
3. g
4. e
5. a
6. y
7. b
8. y
9. J
10. h
11. G
12. f
13. c
14. a
15. e
16. d
17. b