This Grade 4 biology worksheet helps students identify the major bones, cartilage, and landmarks of a dog’s thoracic region. Across 16 items—one multiple-select question and 15 multiple-choice questions—students examine rib cage functions, recall that dogs and cats have 13 pairs of ribs, and identify labeled sections such as the tubercle, costal cartilage, costal fovea, manubrium, sternebrae, xiphoid process, and xiphoid cartilage.
The worksheet also checks students’ understanding of anatomical connections and groupings, including the costochondral junction, intersternebral cartilage, costal arch, and asternal or false ribs. The labeled-identification format gives students repeated practice matching anatomical terms to sections of the rib cage and sternum, while the multiple-select item asks them to distinguish among rib cage functions. It is a free printable worksheet with a complete answer key for Grade 4 biology review, independent practice, or a quick knowledge check.
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Worksheets
Body Parts of a Dog
Total questions: 16
Name
Class
Date
1.
The main functions of the rib cage are;
a)
protection of thoracic organs
b)
protection of abdominal organs
c)
provision of attachment for intercostal muscles which are important for respiration
d)
produce red blood cells in the bone marrow of the ribs
e)
create the main shape of the animals body
2.
How many pair s of ribs do dogs and cats have?
a)
13
b)
31
c)
20
d)
11
e)
12
3.
Identify section A of the rib.
a)
Tubercle
b)
Costal Fovea
c)
Costal Cartilage
d)
Mandubrium
4.
Identify section B of the rib.
a)
Tubercle
b)
Costal Fovea
c)
Costal Cartilage
d)
Mandubrium
5.
Section A sits in which portion of the thoracic vertebrae.
a)
Tubercle
b)
Costal Fovea
c)
Costal Cartilage
d)
Mandubrium
e)
Xiphoid bone
6.
Where the rib meets the joining cartilage is known as what juntion?
a)
Costochondral
b)
Costal Fovea
c)
Costal Cartilage
d)
Mandubrium
e)
Chondralcostral
7.
Which letter represents the MANUBRIUM
a)
A
b)
C
c)
F
d)
H
e)
I
8.
Which letter represents the SECOND STERNEBRAE?
a)
J
b)
C
c)
F
d)
H
e)
I
9.
Which letter represents the XIPHOID PROCESS?
a)
J
b)
C
c)
F
d)
H
e)
I
10.
Which letter represents the XIPHOID CARTILAGE?
a)
J
b)
C
c)
F
d)
H
e)
I
11.
Which letter represents the SEVENTH STERNEBRAE?
a)
J
b)
C
c)
F
d)
H
e)
I
12.
Which of the below options represents section G?
a)
Costochondral Junction
b)
Insternebral cartilage
c)
Asternal/False ribs
d)
Floating rib
e)
Costal Arch
13.
Which of the below options represents section B?
a)
Costochondral Junction
b)
Insternebral cartilage
c)
Asternal/False ribs
d)
Floating rib
e)
Costal Arch
14.
Which of the below options represents section C?
a)
Costochondral Junction
b)
Intersternebral cartilage
c)
Asternal/False ribs
d)
Floating rib
e)
Costal Arch
15.
Which of the below options represents section D?
a)
Costochondral Junction
b)
Intersternebral cartilage
c)
Asternal/False ribs
d)
Floating rib
e)
Costal Arch
16.
Which of the below options represents section E?
a)
Costochondral Junction
b)
Intersternebral cartilage
c)
Asternal/False ribs
d)
Floating rib
e)
Costal Arch
Answer Key
Body Parts of a Dog
Total questions: 16
1.
a)
protection of thoracic organs
, c)
provision of attachment for intercostal muscles which are important for respiration
, d)
produce red blood cells in the bone marrow of the ribs
2.
a)
13
3.
a)
Tubercle
4.
c)
Costal Cartilage
5.
b)
Costal Fovea
6.
a)
Costochondral
7.
a)
A
8.
a)
J
9.
d)
H
10.
c)
F
11.
e)
I
12.
e)
Costal Arch
13.
a)
Costochondral Junction
14.
b)
Intersternebral cartilage
15.
c)
Asternal/False ribs
16.
d)
Floating rib
140 %
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FAQs
What does the Body Parts of a Dog worksheet cover?
This Grade 4 biology worksheet covers the functions and labeled anatomy of a dog’s rib cage and sternum. Its 16 items include one multiple-select question about rib cage functions and 15 multiple-choice questions that ask students to identify structures such as the tubercle, costal fovea, costochondral junction, manubrium, sternebrae, and xiphoid process. Completing the items builds students’ ability to connect anatomical names with specific thoracic structures.
How can I use this worksheet to teach dog rib cage anatomy?
Introduce the worksheet by reviewing the rib cage’s protective and respiratory-support roles, then display or discuss the labeled rib and sternum sections before students work independently. Have students explain why a label such as the tubercle, costal cartilage, or costal fovea belongs in a particular location rather than guessing from the answer choices. Use the questions about 13 pairs of ribs and the costochondral junction as short checkpoints before moving to the labeled sternum items.
What mistakes should I watch for when students complete this dog anatomy worksheet?
Students may confuse the rib tubercle with the costal cartilage or costal fovea because these structures appear in closely related identification questions. They may also mistake the costochondral junction for a type of cartilage, or mix up the manubrium, sternebrae, xiphoid process, and xiphoid cartilage in the lettered sternum items. In the multiple-select question, check that students evaluate each listed rib cage function instead of choosing only one familiar-sounding option.
How do I assign and grade this Body Parts of a Dog worksheet?
You can assign this worksheet as a printable PDF or use it as a digital quiz on Wayground. It includes a complete answer key for the rib cage function, rib-count, and labeled anatomy questions. For printable submissions, scan student work with the Wayground for Teachers app to support grading.
How can I differentiate this dog anatomy worksheet for my students?
In the worksheet’s Advanced Settings, adjust font spacing and font size to make the labeled rib and sternum identification items easier to read. You can also apply a dyslexia-friendly font or translate the worksheet into another language while keeping the focus on terms such as costal cartilage, manubrium, and xiphoid process.
Where can I find more worksheets like this on Wayground?
Wayground offers a comprehensive collection of free printable worksheets and practice problems across subjects, with downloadable PDFs and answer keys to help students master essential skills and concepts. Browse more resources at https://wayground.com/en-us/worksheets.