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Quizzes > Health & Medicine > Human Anatomy & Medicine

Classify Platelike Bones & More in Our Bone Structure Quiz

Think you know what a bone that is platelike is classified as? Dive into the quiz!

Difficulty: Moderate
2-5mins
Learning OutcomesCheat Sheet
Paper art illustration of stylized bones on golden yellow background quiz about bone structure knowledge

Use this bone structure quiz to identify a bone that is platelike, name the epiphysis, and review key terms. Build speed and spot gaps before an exam, or just practice for fun; when you're ready for harder items, try our advanced bone questions .

Which of the following is a platelike (flat) bone?
Humerus
Femur
Sternum
Phalanx
Flat bones are thin, flattened, and often slightly curved, providing large surface areas for muscle attachment and protection of internal organs. The sternum is a classic example of a flat, platelike bone located in the anterior thorax. It protects the heart and lungs and serves as an attachment for ribs and muscles.
What type of bone classification does the femur belong to?
Short bone
Long bone
Flat bone
Irregular bone
Long bones are characterized by a greater length than width and consist of a diaphysis (shaft) and epiphyses (ends). The femur, or thighbone, is the longest and strongest bone in the human body. It functions as a lever for movement and supports body weight.
Which bone is classified as a short bone?
Sternum
Scapula
Mandible
Talus
Short bones are approximately equal in length, width, and thickness, providing stability with limited movement. The talus, one of the tarsal bones in the ankle, is a typical short bone. It helps transmit weight and motion across the ankle joint.
What is the expanded end of a long bone called?
Epiphysis
Medullary cavity
Diaphysis
Metaphysis
The epiphysis refers to the rounded end of a long bone, which articulates with adjacent bones at joints. It is separated from the diaphysis by the growth plate (in growing bones) or the epiphyseal line (in adults). The epiphysis contains spongy bone and red marrow, aiding in hematopoiesis.
Which membrane covers the outer surface of a long bone?
Epimysium
Endosteum
Periosteum
Perimysium
The periosteum is a dense, fibrous membrane covering the outer surface of all bones except at joint surfaces. It contains blood vessels, nerves, and osteogenic cells important for bone growth and repair. The endosteum, by contrast, lines the inner surfaces.
Which cell type is primarily responsible for bone resorption?
Chondrocyte
Osteoclast
Osteocyte
Osteoblast
Osteoclasts are large, multinucleated cells that dissolve bone matrix by secreting acids and enzymes. This resorption process is essential for bone remodeling and calcium homeostasis. Osteoblasts, in contrast, build new bone.
What is the basic structural unit of compact bone?
Trabecula
Lacuna
Osteon (Haversian system)
Canaliculi
An osteon, or Haversian system, is the cylindrical unit of compact bone consisting of concentric lamellae around a central canal. It provides mechanical strength and channels for blood vessels and nerves. Trabeculae form the structure of spongy bone.
Which canal runs longitudinally through the center of an osteon?
Haversian canal
Volkmann's canal
Canal of Schlemm
Carpenter's canal
The Haversian canal, also called the central canal, runs longitudinally and contains blood vessels and nerves. It is surrounded by concentric lamellae of bone matrix. Volkmann's canals connect adjacent osteons transversely.
Spongy bone is also known as:
Compact bone
Fibrocartilage
Lamellar bone
Cancellous bone
Spongy bone, or cancellous bone, has a porous, trabecular structure that reduces bone weight and houses bone marrow. It is found at the ends of long bones and inside flat bones. Compact bone forms the dense outer layer.
The marrow cavity of a long bone is also called the:
Periosteal groove
Medullary cavity
Nutrient foramen
Epiphyseal line
The medullary cavity is the central hollow space within the diaphysis that contains yellow marrow in adults. It reduces bone weight while maintaining structural strength. Nutrient foramina allow blood vessels into the bone.
Which canal connects adjacent Haversian systems in compact bone?
Volkmann's canal
Schlemm's canal
Nutrient canal
Carpenter's canal
Volkmann's canals run perpendicular to Haversian canals, linking blood vessels and nerves between osteons. They enable transverse vascular and nerve connections in compact bone. Haversian canals run longitudinally.
Which of the following are concentric rings of calcified matrix in an osteon?
Lamellae
Lacunae
Trabeculae
Canaliculi
Lamellae are the concentric rings of mineralized matrix that surround the central canal in an osteon. They provide strength and resistance to torsion. Canaliculi are small channels that connect lacunae.
What lines the internal medullary cavity of a long bone?
Endosteum
Periosteum
Endomysium
Perichondrium
The endosteum is a thin membrane that lines the inner surfaces of bone, including the medullary cavity. It contains osteogenic cells responsible for bone growth and remodeling. The periosteum covers the external surface.
During growth, the region between the diaphysis and epiphysis is called the:
Epiphyseal plate
Periosteum
Diaphysis
Metaphysis
The metaphysis is the flared portion of a long bone between the diaphysis and epiphysis, containing the growth plate (epiphyseal plate) in children. It contributes to longitudinal growth. After maturity, the plate becomes the epiphyseal line.
Which hormone primarily stimulates osteoclast activity and bone resorption?
Calcitonin
Growth hormone
Calcitriol
Parathyroid hormone (PTH)
Parathyroid hormone (PTH) increases blood calcium levels by stimulating osteoclasts to break down bone matrix. Calcitonin has the opposite effect, reducing osteoclast activity. PTH is secreted in response to low blood calcium.
Wolff's Law states that bone remodels in response to:
Hormonal fluctuations
Neural stimulation
Mechanical stress
Temperature changes
Wolff's Law describes how bone architecture adapts over time to the mechanical loads placed upon it. Increased stress leads to bone deposition, while lack of stress leads to resorption. This principle underlies exercise-based bone health strategies.
In osteoporosis, which imbalance between bone cells occurs?
Equal activity of both cell types
Chondrocytes replace osteocytes
Osteoblast activity exceeds osteoclast activity
Osteoclast activity exceeds osteoblast activity
Osteoporosis is characterized by excessive bone resorption due to increased osteoclast activity relative to osteoblast bone formation. This imbalance reduces bone density and increases fracture risk. Treatments often aim to inhibit osteoclasts or stimulate osteoblasts.
Which ossification process forms the flat bones of the skull?
Endochondral ossification
Appositional ossification
Intramembranous ossification
Perichondral ossification
Intramembranous ossification involves the direct conversion of mesenchymal tissue into bone, forming flat bones like those in the skull. Endochondral ossification uses a cartilage template for long bones. This process is critical for cranial development and growth.
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Study Outcomes

  1. Identify Platelike Bones -

    Recognize that a bone that is platelike is classified as a flat bone and distinguish it from other bone shapes.

  2. Name Expanded Ends of Long Bones -

    Recall that the expanded end of a long bone is called the epiphysis and describe its role in growth and articulation.

  3. Differentiate Bone Classifications -

    Compare platelike bones to long, short, and irregular bones based on their structure and function.

  4. Define Key Bone Terms -

    Define terms such as diaphysis, epiphysis, and periosteum to strengthen your bone structure vocabulary.

  5. Apply Classification Knowledge -

    Use quiz scenarios to reinforce your ability to classify bones by shape and understand their anatomical significance.

Cheat Sheet

  1. Bone Classification Basics -

    A bone that is platelike is classified as a flat bone, characterized by its thin, broad surface ideal for muscle attachment and organ protection (e.g., sternum, scapula). This classification comes from standard anatomy references like Gray's Anatomy and university anatomy courses. Remember "Flat Fences Protect," a mnemonic to recall flat bones protect vital organs.

  2. Epiphysis: The Expanded End -

    The expanded end of a long bone is called the epiphysis, with proximal and distal epiphyses housing spongy bone and red marrow. This term appears in all major anatomy texts and osteology modules at institutions like Johns Hopkins. Use "E for Ends" to remember epiphysis marks each end of a long bone.

  3. Five Key Bone Functions -

    Bones support, protect, facilitate movement, store minerals, and enable hematopoiesis, summarized by the mnemonic "SPiM MeHo" (Support, Protection, Mineral storage, Movement, Hemopoiesis). These five functions are detailed in peer-reviewed journals like the Journal of Bone and Mineral Research. Knowing this list boosts recall during exams and practical assessments.

  4. Compact vs. Spongy Bone Structure -

    Compact bone features tightly packed osteons with Haversian canals, while spongy bone has trabeculae and marrow spaces; both are covered in NIH and university anatomy resources. A simple trick: "Compact like columns, Spongy like scaffolding" helps visualize each microstructure. Understanding this distinction is essential for topics from stress fractures to bone remodeling.

  5. Ossification Processes -

    Flat bones form via intramembranous ossification, whereas most long bones grow through endochondral ossification, as taught in medical school curricula and anatomy texts from Oxford University Press. Remember "Membrane Makes Flat," a quick way to link flat bones with intramembranous ossification. This concept underpins skeletal development and growth plate physiology.

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