Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Transcribed Image Text:Structures:
1. Tube feet
2. Madreporite
3. Ambulacral groove
4. Papulae (aka skin gills or dermal branchiae)
5. Stomach
6. Arm
7. Aristotle's lantern
8. Teeth
9. Water vascular system
10.
Spines
Functions:
A. Projections from the surface of echinoderms, often hard calcareous in sea urchins or short
and soft in other classes.
B. Calcareous structures used for feeding in sea urchins
C. Soft sac-like projections through the outer hard plates or shell. They function as gills in gas
exchange and for waste removal. Also called skin gills or dermal branchiae.
D. The water filled hydraulic system of tubes in echinoderms. Tube feet form part of this
system.
E. A bag-like part of the digestive system for food storage. In sea stars, the stomach is everted
from the inside of the body to the outside where it envelopes food.
F. Flexible hollow (water filled) tubes with a sucker-like end that protrude from the
echinoderm body used for locomotion or/and feeding
G. Opening covered by a plate that filters and allows water to enter the echinoderm water
vascular system. Also called a sieve plate.
H. Grooves along the ventral surface of sea star arms often where the tube feet protrude
Body projections of sea stars and brittle stars, often in multiples of 5.
J. The mouthparts, including the 5 teeth of sea urchins
I.
![Question 9
Name and match this structure with its function. [HINT: The structure name has 2 words]
AWXRA
Question 10
K
Name and match structure J with its function. [HINT: The structure name is a single word]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F8da3492a-01e7-4492-9611-cd3a0321002c%2F24be346d-afd7-4f70-b515-a1b8d53711e4%2F51atzi_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Question 9
Name and match this structure with its function. [HINT: The structure name has 2 words]
AWXRA
Question 10
K
Name and match structure J with its function. [HINT: The structure name is a single word]
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